CHEMICAL & ENGINEERING

NEWS

Calendar Of Meetings And Events

Of Chemical Interest July-December 1969

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O C T O B E R N O V E M B E R D E C E M B E R S M T W T F S S M T W T F S S M T W T F S

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C&EN CALENDAR

Of Chemical Interest July-December 1969 For your convenience, this calendar has been prestitched and placed in the center of the issue for easy removal and filing.

J U LY Sun Mon Tue Wed Thu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Symposium on Biomedical Polymers. ACS Southern California Section. Caltech, Pasadena, Calif., July 7-8.

Gordon Research Conference. Textiles. Colby Junior College, New London, N.H. July 7 - 1 1 .

Gordon Research Conference. Statis­tics in Chemistry and Chemical En­gineering. New Hampton School, New Hampton, N.H. July 7 -11 .

Gordon Research Conference. Chem­istry, Physiology, and Structure of Bones & Teeth. Kimball Union Academy, Meriden, N.H. July 7 - 1 1 .

Gordon Research Conference. Chem­istry & Physics of Space. Tilton School, Tilton, N.H. July 7-11.,

Gordon Research Conference. Physical Metallurgy. Providence Heights Col­lege, Issaquah, Wash. July 7 - 1 1 .

Society of Chemical Industry. Sym­posium on New Horizons for Chem­istry and Industry in the 1990's. University of Lancaster, Lancaster, England. July 7 - 1 1 .

International Colloquium on Structure and Properties of Solid Surfaces. Paris, France. July 7 - 1 1 .

2nd International Congress of Hetero­cyclic Chemistry. University of Montpellier, Montpellier, France. July 7-12.

National Fertilizer Solutions Association. National Roundup on Additives and Fluid Fertilizers. Ridpath Hotel, Spokane, Wash. July 8-9.

Symposium on Oxidation in Organic Chemistry. University of Manchester Institute of Science and Technology. Manchester, England. July 8 -9 .

6th Symposium on Electroexplosive Devices. St. Francis Hotel, San Francisco, Calif. July 8-10.

Three-Body Problem in Nuclear and Particle Physics. IP&PS. Birming­ham, England. July 8-10.

International Symposium on Rational Development and Application of Drugs. University of Nijmegen, Nij-megen, Holland. July 8-10.

The Chemical Society. Symposium on Isotope Effects. York, Englandi. July 8-10.

National Society of Professional Engi­neers. Annual Meeting. Muehle-bach Hotel, Kansas City, Mo. July 8-12.

Symposium on Chemical Aspects of Air Pollution. IUPAC. Cortina D'Ampezzo, Italy. July 9-10.

Symposium on Gas Kinetics. Hun­garian Chemical Society. Szeged, Hungary. July 9-12.

APL Users Conference. Computing and Data Processing Center, State Uni­versity of New York at Binghamton, Harpur College, Binghamton, N.Y. July 11-12.

Symposium on Physiology and Bio­chemistry of Muscle as a Food. University of Wisconsin, Madison, Wis. July 13-16.

American Medical Association. Annual Convention. New York, N.Y. July 13-17.

2nd National Symposium on Sanitary Engineering Research, Development, and Design. Cornell University, Ithaca, N.Y. July 14-16.

Conference on Nonconventional Elec­tron Microscopy. St. Catherine's College, Oxford, England. July 14-16.

Gordon Research Conference. Scien­tific Information Problems in Re­search. Colby Junior College, New London, N.H. July 14-18.

Gordon Research Conference. Radia­tion Chemistry. New Hampton School, New Hampton, N.H. July 14-18.

Gordon Research Conference. Chem­ical Oceanography. Kimball Union Academy, Meriden, N.H. July 14-18.

Gordon Research Conference. Hor­mone Action. Tilton School, Tilton, N.H. July 14-18.

Gordon Research Conference. Chem­istry & Metallurgy of Semiconduc­tors. Proctor Academy, Andover, N.H. July 14-18.

Gordon Research Conference. Molecu­lar Pathology. Providence Heights College, Issaquah, Wash. July 14-18.

International Reclamation and Disposal Exhibition. Olympia Hall, London, England. July 14-18.

International Atomic Absorption Spec­troscopy Conference. Society for Analytical Chemistry. Sheffield, Eng­land. July 14-18.

IVth International Congress for Phar­macology. Basel, Switzerland. July 14-18.

Meeting on Trace Elements Metab­olism in Animals. Aberdeen, Scot­land. July 14-18.

IUPAC. International Symposium on the Chemical Control of the Human Environment. Johannesburg, South Africa. July 14-18.

The Chemical Society. Enamine Chem­istry. University of Salfordl, Sal-ford, England. July 15-16.

International Conference on Ion Ex­change in the Process Industries. Society of Chemical Industry. Lon­don, England. July 15-18.

The Chemical Society. Symposium on NMR Spectroscopy. Birmingham, England. July 15-19.

4th National Conference on Electron Microprobe Analysis. Huntington-Sheraton Hotel, Pasadena, Calif. July 16-18.

Symposium on Surface Area Deter­mination. IUPAC & SCI. University of Bristol, Bristol, England. July 16-18.

Symposium on the Chemistry and Biology of Pteridine. Toba, Japan. July 20-23.

12th Annual Institute in Technical and Industrial Communications. Colo­rado State University, Fort Collins, Colo. July 20-25.

Gordon Research Conference. Cor­rosion. Colby Junior College, New London, N.H. July 21-25.

Gordon Research Conference. Organic Reactions and Processes. New Hampton School, New Hampton, N.H. July 21-25.

Gordon Research Conference. Chem­istry at Interfaces. Kimball Union Academy, Meriden, N.H. July 2 1 -25.

JULY 7, 1969 C&EN 3A

Gordon Research Conference. Numer­ical Data of Science and Technology. Tilton School, Tilton, N.H. July 2 1 -25.

Gordon Research Conference. Chem­istry & Physics of Paper. Proctor Academy, Andover, N.H. July 2 1 -25.

Gordon Research Conference. Chem­istry and Physics of Isotopes. Hol-derness School, Holderness, N.H. July 21-25.

Gordon Research Conference. Quan­tum Solids and Fluids. Providence Heights College, Issaquah, Wash. July 21-25.

International Symposium on Analytical Chemistry. IUPAC and Society for Analytical Chemistry. Birmingham, England. July 21-25.

5th International Symposium on Flu­orine Chemistry. Moscow, U.S.S.R. July 21-26.

National Fertilizer Solutions Associa­tion. National Roundup on Additives and Fluid Fertilizers. Muehlebach Hotel, Kansas City, Mo. July 22-23.

Symposium on Synthetic Methods and Rearrangement in Alicyclic Chem­istry. The Chemical Society. Ox­ford, England. July 22-24.

Annual Northeast Regional Antipollu­tion Conference (ANERAC-69). University of Rhode Island, Kingston, R.I. July 22-25.

Argonne Universities Association. Con­ference on Universities, National Lab­oratories, and Man's Environment. Chicago, III. July 27-29.

4th International Symposium on Or-ganometallic Chemistry. The Chem­ical Society and IUPAC. Bristol, Eng­land. July 27-Aug. 1.

Society of Research Administrators. 3rd Annual Meeting. St. Francis Ho­tel, San Francisco, Calif. July 28-30.

Symposium on the Management of Im­provement. Georgia Institute of Technology, Atlanta, Ga. July 2 8 -Aug. 1.

Instrument Society of America. Re­search Conference on Instrumenta­tion Science. Hobart & William Smith College, Geneva, N.Y. July 28-Aug. 1.

2nd Symposium on Physics and Chem­istry of Fission. IAEA. Vienna, Austria. July 28-Aug. 1.

For more information on whom to contact for additional details on any meeting or exposition listed in this calendar, you may write to:

Kathryn Campbell Assistant Editor, C&EN 1155-16th St., N.W. Washington, D.C. 20036

4A C&EN JULY 7, 1969

J U LY Sun Mon Tue Wed Thu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

A U G U S T Sun Mon Tue Wed Thu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Gordon Research Conference. Elasto­mers. Colby Junior College, New London, N.H., July 28-Aug. 1.

Gordon Research Conference. Steroids & Other Natural Products. New Hampton School, New Hampton, N.H. July 28-Aug. 1.

Gordon Research Conference. Toxicol­ogy & Safety Evaluations. Kimball Union Academy, Meriden, N.H. July 28-Aug. 1.

Gordon Research Conference. Nuclear Structure Physics. Tilton School, Tilton, N.H. July 28-Aug. 1.

6th International Conference on the Physics of Electronic and Atomic Collisions. IUPAP et al. Boston, Mass. July 28-Aug. 2.

11th National Heat Transfer Confer­ence. AlChE and AIME. Minneapo­lis, Minn. Aug. 3-6.

Society for Cryobiology. 6th Annual Meeting. Statler-Hilton Hotel, Buf­falo, N.Y. Aug. 3-7 .

Joint Automatic Control Conference. University of Colorado, Boulder, Colo. Aug. 3-8.

American Society of Safety Engineers. Professional Conference. University of Maryland, College Park, Md. Aug. 4 -5 .

Symposium on the Chemistry of Nat­ural Products. University of Con­necticut, Storrs, Conn. Aug. 4 -5 .

International Conference on Raman Spectroscopy. Carleton University, Ottawa, Ont. Aug. 4 -7 .

National Conference on Pharmaceutical Analysis. Land O'Lakes, Wis. Aug. 4 -8 .

Gordon Research Conference. Food and Nutrition. Colby Junior College, New London, N.H. Aug. 4 -8 .

Gordon Research Conference. Inor­ganic Chemistry. New Hampton School, New Hampton, N.H. Aug. 4 -8 .

Gordon Research Conference. Photo-nuclear Reactions. Tilton School, Til­ton, N.H. Aug. 4 -8 .

Gordon Research Conference. Chem­istry & Psychophysiology of Odor and Flavor. Providence Heights College, Issaquah, Wash. Aug. 4 -8 .

Institute of Paper Chemistry. 7th An­nual Conference on Chemicals and Paper. Appleton, Wis. Aug. 4-15.

1969 Joint Automatic Control Confer­ence. AlChE et al. University of Colorado, Boulder, Colo. Aug. 5-7.

Associations of American Feed, Ferti­lizer, and Pesticide Control Officials. Annual Meetings. Rice Hotel, Hous­ton, Tex. Aug. 4 -8 .

18th Annual Denver Conference on Ap­plications of X-Ray Analysis. Al­bany Hotel, Denver, Colo. Aug. 6 -

8th International General Assembly and Congress of International Union of Crystallography. Buffalo, N.Y., Stony Brook, N.Y., Upton, N.Y Aug. 7-27.

Soil Conservation Society. Annual Meeting. Colorado State University, Fort Collins, Colo. Aug. 10-13.

6th International Congress of Chemo­therapy. Tokyo, Japan. Aug. 10 -

3rd Canadian Symposium on Theoreti­cal Chemistry. National Research Council of Canada. University of Toronto, Toronto, Ont. Aug. 10-16.

Industrial Research Conference on Lab­oratory in Research Management. Pocono Manor, Pa. Aug. 10-16.

Conference on Crystal Growth. Na­tional Bureau of Standards, Gaithers-burg, Md. Aug. 11-13.

American Soybean Association. An­nual Convention. Ocean Forest Hotel, Myrtle Beach, S.C. Aug. 1 1 -13.

Gordon Research Conference. Medic­inal Chemistry. Colby Junior Col­lege, New London, N.H. Aug. 11-15.

Gordon Research Conference. Analyti­cal Chemistry. New Hampton School, New Hampton, N.H. Aug. 11-15.

Gordon Research Conference. Chem­istry & Physics of Solids. Kimball Union Academy, Meriden, N.H. Aug. 11-15.

Gordon Research Conference. Organic Photochemistry. Tilton School, Til­ton, N.H. Aug. 11-15.

Gordon Research Conference. Chem­istry & Physics of Liquids. Holder­ness School, Holderness, N.H. Aug. 11-15.

Gordon Research Conference. Bio­chemistry & Agriculture. Providence Heights College, Issaquah, Wash. Aug. 11-15.

National Fertilizer Solutions Associa­tion. National Roundup on Addi­tives and Fluid Fertilizers. Marriott Motor Inn, Atlanta, Ga. Aug. 13-14.

American Association of Clinical Chem­ists. Annual Meeting. Denver, Colo. Aug. 17-22.

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11th Annual Asilomar Summer Con­ference. California Association of Chemistry Teachers. Asilomar Con­ference Grounds, Monterey Penin­sula, Calif. Aug. 17-23.

Chemical Institute of Canada. 3rd NMR Symposium. University of Toronto, Toronto, Ont. Aug. 17-24.

Gordon Research Conference. Separa­tion & Purification. Colby Junior College, New London, N.H. Aug. 18-22.

Gordon Research Conference. Chem­istry and Physics of Cellular Mate­rials. New Hampton School, New Hampton, N.H. Aug. 18-22.

Gordon Research Conference. Ion Ex­change. Kimball Union Academy, Meriden, N.H. Aug. 18-22.

Gordon Research Conference. Thin Films. Tilton School, Tilton, N.H. Aug. 18-22.

Gordon Research Conference. Opera­tions Research and Management Sci­ence. Holderness School, Holder-ness, N.H. Aug. 18-22.

New England Association of Chem­istry Teachers. 31st Summer Con­ference. Plymouth State College, Plymouth, N.H. Aug. 18-22.

Utilization of Large Radiation Sources and Accelerators in Industrial Proc­essing. Symposium. International Atomic Energy Agency. Munich, Germany. Aug. 18-22.

Water Pollution Control. Engineering Foundation Research Conference. University of California, Santa Bar­bara, Calif. Aug. 18-22.

Phytochemical Society of North Amer­ica. Symposium on Chemistry and Biochemistry of Phenolic Com­pounds. Banff, Alta. Aug. 19-22.

Western Electronic Show and Conven­tion (WESCON). Cow Palace, San Francisco, Calif. Aug, 19-22.

IUPAC. XXIInd International Congress of Pure and Applied Chemistry and Xllth International Conference on Coordination Chemistry. Sydney, Australia. Aug. 20-27.

American Institute of Chemical Engi­neers. 66th National Meeting. Hil­ton Hotel, Portland, Ore. Aug. 2 4 -27.

2nd International Colloquium on Gas-dynamics of Explosions and Reac­tive Systems. Novosibirsk, U.S.S.R. Aug. 24-29.

American Marketing Association. Fall Meeting. Netherlands Hilton Hotel, Cincinnati, Ohio. Aug. 25-27.

Gordon Research Conference. Cancer. Colby Junior College, New London, N.H. Aug. 25-29.

Gordon Research Conference. Science of Adhesion. New Hampton School, New Hampton, N.H. Aug. 25-29.

Gordon Research Conference. Chem­istry of Molten Salts. Kimball Union Academy, Meriden, N.H. Aug. 2 5 -29.

A U G U S T SunMonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

S E P T E M B E R Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Gordon Research Conference. Chem­istry and Physics of Coatings and Films. Tilton School, Tilton, N.H. Aug. 25-29.

Gordon Research Conference. Geo­chemistry. Holderness School, Hol­derness, N.H. Aug. 25-29.

International Conference on Lumines­cence. IUPAP & APS. University of Delaware, Newark, Del. Aug. 2 5 -29.

IUPAC. International Symposium on Macromolecular Chemistry. Buda­pest, Hungary. Aug. 25-30.

Chemical Institute of Canada. Sym­posium on Multiple Bonding in In­organic Chemistry. University of Manitoba, Winnipeg, Man. Aug. 2 7 -29.

International Briquetting Association. Sun Valley, Idaho. Aug. 27-29.

8th International Congress of Nutrition. Prague, Czechoslovakia. Aug. 2 8 -Sept. 5.

International Association of Volcanol-ogy and Chemistry of the Earth's Interior. Belfast, Ireland. Aug. 2 9 -Sept. 5.

1st International Conference on Calo-rimetry and Thermodynamics. IUPAC & Polish Academy of Sciences. Warsaw, Poland. Aug. 31-Sept. 4.

Prague Microsymposiums 4, 5, and 6. Czechoslovak Academy of Sciences, IUPAC. Sept. 1-4, 1-3, and 8 - 1 1 .

International Wood Chemistry Sympo­sium. Seattle, Wash. Sept. 1-4.

International Society for Neurochem-istry. Milan, Italy. Sept. 1-5.

International Associations of Seis­mology and Physics of the Earth's Interior and of Geomagnetism and Aeronomy. Madrid, Spain. Sept. 1-13.

2nd Latin-American Congress of Can­cer Chemotherapy. Sao Paulo, Bra­zil. Sept. 1-15.

24th Annual Symposium on Molecular Structure and Spectroscopy. Ohio State University, Columbus, Ohio. Sept. 2-6 .

Chemical Institute of Canada. 15th Canadian High Polymer Forum. Queen's University, Kingston, Ont. Sept. 3-5.

International Symposium on Technolog­ical Economics of Pest Control. Sterling, Scotland. Sept. 3-6 .

Congress of Chemistry in Agriculture. Bratislava, Czechslovakia. Sept. 3 -6 .

4th International Conference on Tech­nical Progress in the Pulp and Paper Industry. Lodz, Poland. Sept. 3-6.

Polish Chemical Society. 50th Anni­versary National Congress. Krakow, Poland. Sept. 4 -6 .

International Clay Conference. Tokyo, Japan. Sept. 5-10.

Biochemistry of Lipids. Meeting. Athens, Greece. Sept. 7 - 1 1 .

International Union of Leather Chem­ists Societies. 11th Biennial Con­ference. London, England. Sept. 7-12.

ACS. 158th National Meeting & Chem­ical Exposition. New York, N.Y. Sept. 7-12.

Atomic Collision Phenomena in Solids. International Conference. IP&PS. University of Sussex, England. Sept. 7-12.

4th International Congress on Metallic Corrosion. International Congress Center, Amsterdam, Holland. Sept. 7-14.

Society of Cosmetic Chemists. Na­tional Seminar. Riverfront Inn, St. Louis, Mo. Sept. 8-9.

International Colloquium on Physical Properties of Solids Under Pressure. Grenoble, France. Sept. 8-10.

International Symposium on Distilla­tion. Institution of Chemical En­gineers. Brighton, England. Sept. 8-10.

Canadian Agricultural Chemicals As­sociation. 17th Annual Meeting & Conference. Mont Tremblant Lodge, Mont Tremblant, Que. Sept. 8-10.

International Conference in Metallurgy and Materials Science. University of Pennsylvania, Philadelphia, Pa. Sept. 8-10.

Societe de Chimie Industrielle. In­ternational Congress. Istanbul, Tur­key. Sept. 8-12.

16th International Symposium on Microscopy. London, England. Sept. 8-12.

International Symposium on Conforma­tional Analysis. IUPAC et al. Brussels, Belgium. Sept. 8-12.

7th International Congress of Clinical Chemistry. IUPAC. Evian, France, and Geneva, Switzerland. Sept. 8-13.

29th International Congress of the Pharmaceutical Sciences. London, England. Sept. 8-13.

6A C&EN JULY 7, 1969

BURNING QUESTION! ATOMIC ABSORPTION OR FLAME EMISSION?

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JULY 7, 1969 C&EN 7A

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8A C&EN JULY 7, 1969

International Symposium on Atmos­pheric Chemistry and Radioactivity. Heidelberg, Germany. Sept. 8-13.

3rd Symposium on the Deposition of Thin Films by Sputtering. Univer­sity of Rochester, Rochester, N.Y. Sept. 9-10.

Conference on Small Angle X-Ray Scat­tering in Glass and High Tempera­ture Materials. University of Mis­souri, Rolla, Mo. Sept. 9-13.

2nd Symposium on Ion Exchange. Balatonszeplak, Hungary. Sept. 1 0 -14.

Symposium on Sulfur in Nutrition of Plants, Animals, and Humans. Ore­gon State University, Corvallis, Ore. Sept. 11-12.

Drug, Chemical & Allied Trades As­sociation. 79th Annual Meeting. The Greenbrier, White Sulphur Springs, W.Va. Sept. 11-13.

5th International Congress of Dietetics. Washington, D.C. Sept. 12-16.

National Agricultural Chemicals Associ­ation. 36th Annual Meeting. The Greenbrier, White Sulphur Springs, W.Va. Sept. 14-17.

Biochemical Society. Research Con­ference. Ashford, England. Sept. 14-19.

CITCE (Comite International de Thermo-dtynamique et de Cinetique Electro-chemiques). 20th Meeting. Stras­bourg, France. Sept. 14-20.

International Congress of Chemical En­gineering, Chemical Equipment, and Automation. Marianske Lazne, Czechoslovakia. Sept. 15-20.

Gesellschaft Deutscher Chemiker. General Assembly. Hamburg, Ger­many. Sept. 15-20.

Faraday Society. Discussion on Mo­tions in Molecular Crystals. Oxford, England. Sept. 16-18.

Mass Spectroscopy Group. Sheffield, England. Sept. 16-18.

17th Detroit Anachem Conference & In­strument Exhibit. Statler Hilton Ho­tel, Detroit, Mich. Sept. 16-18.

Solid State Devices Conference. IP&PS. University of Exeter, Exeter, Eng­land. Sept. 16-19.

Biological Effects and Health Implica­tions of Microwave Radiation. Hotel John Marshall, Richmond, Va. Sept. 17-19.

International Symposium on Blood and Tissue Antigens. Ann Arbor, Mich. Sept. 17-19.

Southern Industrial Expo (Southeastern Plant Engineering and Maintenance Show). Marriott Motor Hotel, At­lanta, Ga. Sept. 17-19.

National Conference on Industrial Re­search. Industrial Research, Inc. Chicago, III. Sept. 18-19.

Chemical Marketing Research Associa­tion. Lake Placid, N.Y. Sept. 18 -20.

S E P T E M B E R

Sun Mon Tue Wed Thu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

4th Annual Intersociety Energy Con­version Engineering Conference. AlChE et a/. Statler Hilton Hotel, Washington, D.C. Sept. 21-26.

Fundamental Research Symposium on Papermaking Systems. Oxford, England. Sept. 21-26.

International Conference on the Use of Cyclotrons in Chemistry, Metallurgy, and Biology. Oxford, England. Sept. 22-23.

Conference on Plasma Turbulence. IP&PS. University of Manchester In­stitute of Science and Technology, Manchester, England. Sept. 22-23.

Symposium on Diffusion Processes. Thomas Graham Memorial Sym­posium. University of Strathclyde, Glasgow, Scotland. Sept. 22-24.

International Symposium on Fish Meal and Oil. Fredericton, N.B. Sept. 22-24.

Symposium on Coordination Chemistry of Transition Elements. Jena, Ger­many. Sept. 22-25.

Societe de Chimie Physique. 21st An­nual Meeting. Paris, France. Sept. 22-25.

ASTM Committee E-19 on Chromatog­raphy. Annual Meeting. Sheraton Hotel, Philadelphia, Pa. Sept. 23-25.

Chemical, Biological, and Nutritional Aspects of Sucrose. London, Eng­land. Sept. 23-25.

9th Annual Symposium on Physics and Nondestructive Testing. Holiday Inn, Lake Shore Drive, Chicago, III. Sept. 23-25.

Filtration Society Conference and Ex­hibition. Olympia, London, England. Sept. 23-25.

The Chemical Society. Autumn Meet­ing. Southampton, England. Sept. 23-25.

4th Annual Plastics Conference. Eastern Michigan University, Ypsi-lanti, Mich. Sept. 24-25.

Nuclear and Elementary Particle Physics Conference. IP&PS. University of Sussex, Sussex, England. Sept. 24-26.

National Conference on Histochemistry and Cytochemistry. Bucharest, Ro­mania. Sept. 26-27.

Biochemical Identification of Fish. Dublin, Ireland. Sept. 27.

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The new Technicon^ Monitor IlA offers a completely automated wet-chemical system for continuous monitoring of ambient S02 . The Monitor IlA employs the officially sanctioned West-Gaeke procedure for S02 analysis, recognized as the most selective of any method presently known. The system may be converted easily and inexpensively to make N02 determinations by the Salzman procedure.

Compact and portable, the Monitor IlA incorporates a new gas absorption system ensuring reliable, totally automated analysis. Low reagent consumption rate, coupled with reliable automatic performance, permits the Monitor IlA to operate without human attention for periods up to one week.

Take a breather, and let Technicon's Monitor IlA do your S02 analysis.

For additional information or specifications, please contact Department 63, § H E | | Technicon Corporation,

|| | | in Environmental Sciences Division, IIIIH Tarrytown, New York 10591.

JULY 7, 1969 C&EN 9A

COPYRIGHT O 19G0 BY TECHNICON CORPORATION, TARRYTOWN, N.Y.

DIGILAB

(TM)Block Engineerings trade mark for a family of individual analytical heads, integrated with, controlled by and feeding into a shared, general purpose, low-cost computer.

featuring the highest analytical sensitivity available complete measurements and spectra in minutes—not hours highest wavelength precision available continuous closed loop computer monitoring and control of the spectrometer, virtually eliminating knobs, buttons and meters

YESTERDAY it took four hours to scan this infrared spectrum at high resolution (0.5 cm~1).

ROTATIONAL STRUCTURE OF THE CARBON DIOXIDE (1 2C*02) BAND AT 4.3 MICRONS

BLOCK ENGINEERING INC.

TODAY it takes only eight minutes with the FTS-14 high resolution Fourier Transform Spectrometer, the first operational system in our new DIGILAB© analytical instrument series.

AND TOMORROW? More DIGILAB© heads are on the way. They will plug directly into your DIGILAB® computer.

Please direct inquiries to

^ F ^ - DUNN Analytical Instruments Division P.O. Box 2047, Silver Spring, Md. 20902 • (301) 942-2127

Branch Sales Offices: Western Region —210 Montura Way, Novato, Cal. 94947 • (415) 883-6744 Mid-Atlantic Region —98 Kenilworth Place, Brooklyn, N.Y. 11210 • (212) 859-3634

announcing the DIGILAB FTS-14 Infrared Spectrometer System

Paul 0. Abbe manufactures a complete line of PILOT PLANT EQUIPMENT

for Grinding, Mixing, Dispersing, Blending,

Drying, Cooling Write for catalog describing and giving specifications of any of these machines.

Jacketed Steel Ball Mill Available in a wide selection of sizes —with chrome manganese, porcelain and other linings. "Shaft-Pack" drive illustrated is one of several types to choose from.

Fully Jacketed Twin Steel Ball Mill

The diameterof these mills corresponds to that o^our production mills, but the cylinder is shorter in length. Cylinders available in chrome manganese for steel ball operation, or lined for use with flint pebbles or porcelain balls.

Ribbon Mixer Has jacket for temperature control, and vacuum cover. In addition to mix­ing dry powders, liquids and slurries, it also performs de-aerating, drying, crystallization, liquids and solids blending, and physical reactions.

"Rota-Cone" Vacuum Dryer This is our standard design "Rota-Cone" Vacuum Dryer in pilot plant sizes, 9" and 12" diameter.

Double-Shaft Mixer Provides fast, thorough mixing and kneading action. Can be designed for pressure or vacuum mixing when required. Also used for dry mixing.

"Rota-Cone" Blender Cone is easily detached for cleaning or steril­izing. This machine is also available with two cones.

UPPUL p i i i i f a i 249 CENTER AVENUE BALL & PEBBLE MILLS

LITTLE FALLS, N.J. 07424 • 201-256-4242 DRY & PASTE MIXERS • DRYERS & BLENDERS

S E P T E M B E R

Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

O C T O B E R Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Society of Petroleum Engineers of AIME. 43rd Annual Fall Meeting. Brown Palace Hotel, Denver, Colo. Sept. 28-Oct. 1.

National Environmental Sanitation & Maintenance Conference & Exposi­tion. Institute of Sanitation Manage­ment. Statler Hilton Hotel, Detroit, Mich. Sept. 28-Oct. 2.

Chemical Institute of Canada. Sym­posium on New Trends in Industrial Analysis. Sheraton-Brock Hotel, Ni­agara Falls, Ont. Sept. 29-Oct. 1.

Ausplas '69. Plastics Exhibition. Plas­tics Institute of Australia. Sydney, N.S.W., Australia. Sept. 29-Oct. 3.

4th International Synthetic Rubber Sym­posium and Exhibition. Church House, Westminster, London, Eng­land. Sept. 30-Oct. 2.

13th Conference on Analytical Chem­istry in Nuclear Technology. ORNL. Gatlinburg, Tenn. Sept. 30-Oct. 2.

Canadian Materials and Processing Technology Conference and Exposi­tion. King Edward Sheraton Hotel, and Queen Elizabeth Bldg., Exposi­tion Park, Toronto, Ont. Sept. 3 0 -Oct. 2.

National Cotton Council. Chemical Finishing Conference. Mayflower Hotel, Washington, D.C. Sept. 3 0 -Oct. 2.

Annual Meeting for Process Engineers. Bayreuth, Germany. Sept. 30-Oct. 2.

TVA Fertilizer Distribution and Market­ing Conference. Sheraton-Peabody Hotel, Memphis, Tenn. Oct. 1-3.

Reactor Operating Experience. Ameri­can Nuclear Society. San Jeronimo Hotel, San Juan, P.R. Oct. 1-3.

American Society for Information Sci­ence. 32nd Annual Meeting. San Francisco Hilton, San Francisco, Calif. Oct. 1-5.

Academy of Pharmaceutical Sciences. 9th Annual Eastern Regional Meet­ing, Industrial Pharmaceutical Tech­nology Section. Park Sheraton Ho­tel, New York, N.Y. Oct. 3.

American Oil Chemists' Society. 43rd Fall Meeting. Leamington Hotel, Minneapolis, Minn. Oct. 5-8.

Water Pollution Control Federation. Dallas, Tex. Oct. 5-9.

12A C&EN JULY 7, 1969

: A B O T C A B O T C O R P O R A T I O N

DEPT. CN-16, 125 HIGH ST., BOSTON, MASS. 02110 (617)423-6000

L A B O R A T O R Y R E P O R T N O . 16

NOW... FROM CABOT FLAME RESEARCH

alon An oxide with exciting possibilities What can it do for your product? The unique properties of positive sur­face charge, large surface area, high purity and extremely small particle size make ALON a versatile and exciting new material with potential uses in many di­verse industries. A fumed alumina of different crystalline forms consisting pre­dominantly of the gamma modification, ALON is made by the hydrolysis of alumi­num chloride in a flame process similarto that for making Cabot fumed silica, CAB-0-SIL®.

ALON is an inorganic oxide with a sur­face charge that remains positive up to a pH level of 9.1, the isoelectric point. Each gram of ALON has a surface area of 100 square meters. This produces high func­tional activity from relatively small quan­tities.

SUGGESTED USES FOR ALON TEXTILES — As a carding and spinning aid, ALON has been found to significantly reduce the ends-down and enable faster front roll speeds for increased output. ALON has been found to perform as a very effective static control agent. ALON's strong positive surface charge forms a bond with negatively charged fibers, in­creasing f iber-to-f iber cohesion. In­creased yarn strengths along with these other benefits are being experienced on wool, synthetics and blends. The same utility can be expected on cotton and cot­ton/synthetic blends.

Its positive charge indicates ALON potential as an anti-static, anti-soiling and anti-pilling agent for synthetic fibers and blends. This same property may pro­mote dyeabil i ty in certain hard-to-dye fibers.

PAPER — Paper machine downtime is reduced by using ALON as a pitch control agent. The positive charge keeps the pitch dispersed and avoids formation of t roublesome agglomerates. This can mean reduced cleaning costs and higher quality paper. The high purity and good electrical properties make ALON an effec­tive filler in specialty electronic capaci­tance papers.

OTHER USES FERRITES - ALON improves cold tern-

perature operation of ferrites used as armature cores in fractional hp motors.

LIGHT TRANSMISSION AID - ALON is suggested as an additive to phosphor coatings in fluorescent or cathode ray tubes to improve the light output on aging and where high efficiency light transmis* sion is desired on incandescent bulbs. COSMETICS — Hair sprays may be im­proved by ALON because the positive sur­face charge reacts with negatively charged hair fibers.

ELASTOMER REINFORCEMENT -ALON has demonstrated an ability to in­crease creep resistance and reinforce­ment of adhesives and such elastomers as SBR, butyl, nitrile and neoprene rub­bers. THICKENING AGENT - Its positive surface charge suggests ALON can be combined with CAB-O-SILfumed silica to thicken polar liquids such as water. CERAMIC BODY - ALON can be used to improve strength and electrical proper­ties. AIR POLLUTION CONTROL-ALON is being considered as an additive in fuel oils to reduce contaminant emission and minimize scale build-up on furnace fire­walls and boiler tubes. HYDROPHILIC AGENT — ALON can be applied to nor­mally hydrophobic surfaces such as plastic films and fibers, photographic films and offset printing plates to im­prove wettability and eliminate water spotting.

Typical Properties of ALON Color and form X-ray structure Alumina content1

Moisture content Ignition loss Metallic oxides

(other than AI2O3) Average particle

diameter Surface area

pH (10% aqueous suspension)

Specific gravity Loose bulk density •Excludes physically and bined water

White powder 90% gamma 99% minimum 2.5% 4.5%

1% maximum

0.03 micron 100 square

meters/gram

4.4 3.6 4 pounds/cu. ft. chemically com-

Electrophoretic properties of ALON Streaming currents of 2% dispersions

of ALON in 0.01N sodium chloride solution are plotted as a function of pH.

pH

J 4 5 c

6 - 1 0

-20

-V;

- 40

-SO

V 4 0

1 J-

) • ' •

1 10

/

\ \ \

H r I \ \ \ v

10

^

PH 11

Current (Milliamperes)

Zinc oxide becomes free-flowing with only 0.5% ALON.

C A B O T C O R P O R A T I O N Dept. CN-16,125 HIGH ST., BOSTON, MASS. 02110

Please send: n General brochure Q Textile applications brochure • Sample • Please call me for appointment. Tel: I am especially interested in

FREE

Send for general brochure con­

taining ideas for potential uses

of ALON

Name

Company

Title

Dept.

Address

City & State Zip Note: To insure receipt of material, please print or write clearly

JULY 7, 1969 C&EN 13A

Al,03

WITH ALOH ^WITHOUT

At last.

A laboratory reagent gas cylinder that stands alone. No racks, ring stands, brackets, or clamps.

When you buy Merck Laboratory Reagent Gases you get a quality product with three extras. Extra safety. Extra

convenience. Extra bench space. Extra safety because the cylinder is self-supporting, compact in size, and color-coded. Extra convenience because it handles like a standard reagent bottle but deJivers twice the volume of a lecture bottle. Reduces order and handling frequency 50%. Extra bench space because it's shorter than a lecture bottle, narrower than a sphere, and has no ring stand to take up room.

With all these extras in the cylinder, you could say we've introduced a new standard cylinder to the industry.

Besides ample stocks, your local Merck distributor also has something extra for you. A colorful, ready reference file containing 15 technical data sheets with actual-size reproductions of the cylinders. It's all free. Call him. He's expecting you.

™? I ! ^ We think you should expect ^ C H f something extra

ammonia argon

carbon dioxide carbon monoxide

chlorine ethylene

p helium p hydrogen Bydrogen bromide Rydrogen chloride Kydrogen sulfide p methane

I nitrogen oxygen

I sulfur dioxidg

14A C&EN JULY 7, 1969

O C T O B E R

Sun Mon Tue Wed Thu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Exhibition of Chemical Processing Equipment (and other equipment). Tel Aviv, Israel. Oct. 5-10.

17th Annual Joint Engineering Manage­ment Conference. ASME, IEEE, AlChE, ISA. Montreal, Que. Oct. 5-10.

Electrochemical Society. Fall Meeting. Statler Hilton Hotel, Detroit, Mich. Oct. 5-10.

ACS Western Regional Meeting & Expo­sition & 8th National Meeting, Society for Applied Spectroscopy. Disneyland Hotel, Anaheim, Calif. Oct. 5-10.

Packaging Institute. 31st Annual Na­tional Packaging Forum. Americana, New York, N.Y. Oct. 6-8.

19th Annual Instrument Symposium and Research Equipment Exhibit. National Institutes of Health, Bethesda, Md. Oct. 6-9.

International Association of Fish Meal Manufacturers. 9th Annual Con­ference. Cannes, France. Oct. 6 -11.

Symposium on Diabetes and Insulin Research. Omaha, Neb. Oct. 7-8.

Information Processing in Measurement Systems. Slovak Academy of Sciences. Pezinok, Czechoslovakia. Oct. 7-10.

Fiber Society. 9-10.

Philadelphia, Pa., Oct.

Tanners' Council of America. Annual Meeting. Hotel Ambassador, Chi­cago, III. Oct. 9 - 1 1 .

5th International Technical Fair. Co­penhagen, Denmark. Oct. 10-15.

7th International Gel Permeation Chromatography Seminar. Hotel Metropole, Monaco. Oct. 12-15.

6th Symposium on Stable Isotopes. Leipzig, Germany. Oct. 12-19.

American Society for Nondestructive Testing. Annual National Confer­ence. Penn Center Hotel, Philadel­phia, Pa. Oct. 13-16.

Materials Engineering Congress and Exposition. ASM, ASTM, ASNT, AIME, et a/. Civic Center and Shera­ton Hotel, Philadelphia, Pa. Oct. 13-16.

Association of Official Analytical Chem­ists. Annual Meeting. Marriott Motor Hotel, Twin Bridges, Wash­ington, D.C. Oct. 13-16.

American Association for Laboratory Animal Science. 20th Annual Meet­ing. Sheraton Dallas Hotel, Dallas, Tex. Oct. 13-17.

— T H E BETTMANN ARCHIVE

Too bad, old man! You would have seen that their exclusive Servo-Thrust Control ends bear­ing wear due to thrust.

That exclusive rotating bear­ings with carbon or steel ele­ments last many times longer. Advanced design with internal filtration helps, of course!

And stator burnout, that old devil in canned pumps, is out. Electrical characteristics are ab­solutely first rate. Temperature range from cryogenic to high-temp, heat transfer.

See for yourself: Can't afford downtime, you

know. Next time if you need up to 700 gpm, at up to 330 feet of head, Go Eastern, Old Man! Send for Catalog 610.

Exclusive,entirely in­ternal Flow Through System of coolant liauid.

Stator remov­able with ordi­nary shop tools, can be replaced or rewound eas­ily In the field.

Integral's exclusive thrust control device — maintains hydraulic thrust balance at all times by servo feed­back.

$ / & EASTERN INDUSTRIES

A Division of Laboratory For Electronics, Inc. 100 Skiff Street • Hamden, Connecticut 06514

JULY 7, 1969 C&EN 15A

YOU MEAN . . . YOU BOUGHT

CANNED PUMPS VITHOUT CONSULTING THE EASTERN

CATALOG ON ZERO-LEAKAGE

UNITS?

Exclusive Rotat­ing Bearings — Carbon Sleeve bearings rotate with shaft in easily replace-able cap-typej

V journals. /

FIRST THEY TOOK AWAY MY RUSTY, PITTED,

SCARRED OLD METAL HOTPLATE

AND REPLACED IT WITH ASNOWY WHITE

CORNING9

HOTPLATE

THEN THEY TOOK AWAY THE

OLD MIXER THAT SPLASHED

AND REPLACED IT WITH A NEW CORNING

LM-2 THAT MIXES WITHOUT A VORTEX

THEN THEY PUT IN A AND TOOK AWAY NEW,NO-RJSS,COMPACT, THE TUBING AND THE OLD

ALL-GLASS CORNING BOILER IT TOOK ME WATER STILL YEARS TO BUILD

WHAT EVER HAPPENED

TO THE OLD VALUES?

We've replaced some old values with new standards at Corning. Like hot plates, stirrers, and distillation apparatus that all work far better, look far neater. Call your Corning dealer.

CORNING LABORATORY PRODUCTS

Makers of PYREX,® Labware

O C T O B E R Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Clean Air Congress and Exhibition. Society of German Engineers. Dus-seldorf, Germany. Oct., 13-17.

South African Chemical Engineering Exhibition 69. Johannesburg, Repub­lic of South Africa. Oct. 13-18.

Industrial Hygiene Foundation. 34th Annual Meeting. Chatham Center, Pittsburgh, Pa. Oct. 14-15.

American Society of Lubrication Engi­neers. ASLE/ASME Lubrication Conference. Sheraton Lincoln Ho­tel, Houston, Tex. Oct. 14-16.

24th Annual Calorimetry Conference. Wentworth-by-the-Sea Hotel, Ports­mouth, N.H. Oct. 14-16.

Technical Association of the Pulp and Paper Industry. Alkaline Pulping Conference. Robert Meyer Hotel, Jacksonville, Fla. Oct. 14-17.

Society for Experimental Stress Analy­sis. Fall Meeting and Exposition. Rice Hotel, Houston, Tex. Oct. 1 4 -17.

ACS. Division of Rubber Chemistry. Statler Hilton Hotel, Buffalo, N.Y. Oct. 14-17.

National Conference on Fluid Power. Sherman House, Chicago, III. Oct. 16-17.

Federation of Belgian Chemical In­dustries. Brussels, Belgium. Oct. 16-17.

International Symposium on University Chemical Education. IUPAC. Fras-cati, Italy. Oct. 16-19.

American Coke & Coal Chemicals In­stitute. Annual Meeting. The Green­brier. White Sulphur Springs, W.Va. Oct. 18 -21 .

Fluid Controls Institute. Fall Meeting. Seaview Country Club, Absecon, N J . Oct. 19-21 .

Clay Minerals Society. Inn of the Six Flags, Fort Worth, Tex. Oct. 19-22.

Chemical Institute of Canada. 19th Canadian Chemical Engineering Con­ference, incorporating 3rd Sympo­sium on Catalysis. University of Al­berta, Edmonton, Alta. Oct. 19-22.

American Association of Poison Con­trol Centers. 12th Annual Meeting. Palmer House, Chicago, III. Oct. 20.

Spectroscopic Society of Canada. 16th Spectroscopy Symposium. Holiday Inn Hotel, Montreal, Que. Oct. 2 0 -22.

International Air Pollution and Water Conservation Conference. British Nonferrous Metals Research Associa­tion. Basel, Switzerland. Oct.

I 21-23.

16A C&EN JULY 7, 1969

(Its numerical print-out never throws you a curve.)

Automatic titrations are a fine idea as long as accuracy isn't compromised by convenience. The new Metrohm Titroprint E-475 was designed to avoid this very pitfall by reproducing a manual titration and providing a numerical print-out rather than a graphic one. Titroprint titrations are more accurate because numerical print-outs are not subject to error from paper changes due to humidity or other atmospheric condi­tions. Also, there's no problem about speed variation in the paper advance mechanism. Interpretation error, inherent whenever calculations are made from a graph, is eliminated completely.

The E-475 is particularly well-suited for redox titrations where endpoint potential is not precisely defined and the titra­tion must be continued beyond the end point. Titroprint prints out volume, potential change (pH or mv) and sample number continuously as titrant is added. Titrating speed is automati­cally reduced as the end point nearsand the end of the titration is signalled by blinker light or alarm. The Titroprint uses 5, 10, 20, or 50 ml. burettes, and measures potential changes with an accuracy of better than 0.5 mv (0.005 pH). A DIVISION OF

If your present automatic titrator throws you V ^ " V | a curve, why not check the Titroprint E-475? r W I For complete literature, just write: • L» ^m Metrohm Division, Brinkmann Instruments, ^ ^ ^ ^ ^ f l Cantiague Road, Westbury, N. Y. 11 590. BRINKMANN

For the simplest most accurate titrations,the new Metrohm Tit ro print.

International Conference on Quality Control. Tokyo, Japan., Oct. 21-24.

National Lubricating Grease Institute. Annual Meeting. Hotel Muehlebach, Kansas City, Mo. Oct. 26-29.

National Paint, Varnish and Lacquer Association. 82nd Annual Meeting. Palmer House, Chicago, III. Oct. 27-29.

Interscience Conference on Antimicro­bial Agents and Chemotherapy. Washington, D.C. Oct. 27-29.

California Fertilizer Association. 46th Annual Convention. Sahara Tahoe Hotel, Stateline, Nev. Oct. 27-29.

Technical Association of the Pulp and Paper Industry. Plastics-Paper Con­ference. Regency Hyatt House, At­lanta, Ga. Oct. 27-29.

Instrument Society of America. 24th Annual Instrumentation-Automation Conference & Exhibit. Astrohall, Houston, Tex. Oct. 27-30.

57th Annual Safety Congress & Ex­position. National Safety Council. Chicago, III. Oct. 27-30.

American Council of Independent Lab­oratories. Annual Meeting. Disney­land Hotel, Anaheim, Calif. Oct. 2 7 -3 1 .

Association of Consulting Chemists & Chemical Engineers. Annual Dinner Meeting. The Chemists' Club, New York, N.Y. Oct. 28.

O C T O B E R SunMonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

N O V E M B E R Sun Mon Tue Wed Thu Fri Sat

r 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Ciba Foundation Symposium on Bio­medical Research on Quinones. London, England. Oct. 28-30.

American Vacuum Society. 6th An­nual Symposium and Annual Sym­posium of Thin Film Division. Olym­pic Hotel, Seattle, Wash. Oct. 2 8 -3 1 .

Parenteral Drug Association. Annual Convention. Statler Hilton, New York, N.Y. Oct. 2 9 - 3 1 .

Society of Photographic Scientists & Engineers. Symposium on Photo­graphic Processing. Marriott Twin Bridges Motor Hotel, Washington, D.C. Oct. 29 -31 .

17th Annual Marketing Conference. National Industrial Conference Board. New York Hilton, New York, N.Y. Oct. 29 -31 .

ACS. Midwest Regional Meeting & Exposition. Hotel Muehlebach, Kan­sas City, Mo. Oct. 3 0 - 3 1 .

National Conference of Biochemistry. Bucharest, Romania. Oct., 31-Nov. 1.

Canadian Manufacturers of Chemical Specialties Association. 12th An­nual Meeting and Conference. Cha­teau Frontenac Hotel, Quebec, Que. Nov. 2-5.

Technical Association of the Pulp and Paper Industry. Finishing Confer­ence. Sheraton Dayton Hotel, Day­ton, Ohio. Nov. 2-5.

Society of Cosmetic Chemists. Con­ference. Arden House, Harriman, N.Y. Nov. 2-7 .

Chemical Marketing Research Associa­tion. Joint with CIC Chemical Eco­nomics Division. Westbury Hotel, Toronto, Ont. Nov. 4 -5 .

Society of Plastics Engineers. National Technical Conference. Statler-Hilton Hotel, Dallas, Tex. Nov. 4 -6 .

Plastics Institute of America. 7th An­nual Conference. Stevens Institute of Technology, Hoboken, N.J. Nov. 5-6.

NEW in Column Chromatography

18A C&EN JULY 7, 1969

27th Pittsburgh Diffraction Conference. Mellon Institute, Carnegie-Mellon Uni­versity, Pittsburgh, Pa. Nov. 5-7.

Federation of Societies for Paint Tech­nology. 47th Annual Meeting and 34th Paint Industries Show. Conrad Hilton Hotel, Chicago, III. Nov. 5-8.

ACS. Southeastern Regional Meeting & Exposition. John Marshall Hotel, Richmond, Va. Nov. 5-8.

Association of Clinical Scientists. An­nual Meeting and Seminar. May­flower Hotel and Washington Hos­pital Center, Washington, D.C. Nov. 7-9.

International Oxygen Manufacturers Association. Fall Meeting. Del Monte, Pebble Beach, Calif. Nov. 9-12.

Soil Science Society of America. 33rd Annual Meeting. Sheraton-Cadillac and Statler-Hilton Hotels, Detroit, Mich. Nov. 9-14.

American Petroleum Institute. Annual Meeting. Houston, Tex. Nov. 10-11.

National Fertilizer Solutions Associa­tion. Convention and Exhibition. Cincinnati, Ohio. Nov. 10-13.

American Public Health Association. Annual Meeting. Philadelphia Civic Center, Philadelphia, Pa. Nov. 10-14.

International Tin Council. 2nd Tech­nical Conference on Tin. Bangkok, Thailand. Nov. 10-14.

American Association of Textile Chem­ists & Colorists. National Technical Conference. White House Inn, Char­lotte, N.C. Nov. 12-14.

American Institute of Chemical Engi­neers. 62nd Annual Meeting. Stat­ler-Hilton Hotel, Washington, D.C. Nov. 16-20.

1969 International Rubber Conference. Moscow, U.S.S.R. Nov. 16-21.

Robert A. Welch Foundation. Confer­ence on Transuranium Elements. Rice Hotel, Houston, Tex. Nov. 17-19.

Air Pollution Conference. University of Missouri, Columbia, Mo. Nov. 18.

American Federation of Information Processing Societies. Fall Joint Com­puter Conference. Las Vegas, Nev. Nov. 18-20.

National Fire Protection Association. Annual Fall Conference. Denver Hil­ton Hotel, Denver, Colo. Nov. 18-20.

15th Conference on Magnetism and Magnetic Materials. Benjamin Frank­lin Hotel, Philadelphia, Pa. Nov. 18-21.

International Meeting on Nuclear De­salination. Madrid, Spain. Nov. 18-22.

Eastern Analytical Symposium. ACS, SAS, American Microchemical So­ciety. Statler Hilton Hotel, New York, N.Y. Nov. 19-21.

If you use any of these SEND FOR NEW 1969 SPECIALTY GASES & EQUIPMENT CATALOG FROM AIR PRODUCTS Acetylene Air Allene Ammonia Argon

Boron Trichloride Boron Trifluoride Bromine Pentafluoride Bromine Trifluoride Bromotrifluoroethylene 1,3 Butadiene Butane 1-Butene cis-2-Butene trans-2-Butene

cis- and trans-2-Butene Carbon Dioxide Carbon Monoxide Carbonyl Fluoride Carbonyl Sulfide Carrier Gases Chlorine Chlorine Trifluoride Chlorotrifluoroethylene Cyanogen Cyclopropane

Deuterium Dimethylamine Dimethyl Ether 2,2-Dimethylpropane Doping Gases

Ethane Ethyl Acetylene Ethyl Chloride Ethyl Fluoride Ethylene Ethylene Oxide

Fluorine

Halocarbon— 11,12 ,13 ,13B1, 14, 21, 22, 23, 113, 114, 114B2, 115, 116, 142B, 152A, C-318,1132A Helium Hexafluoropropene Hydrogen Hydrogen Bromide Hydrogen Chloride Hydrogen Fluoride Hydrogen Iodide Hydrogen Sulfide

Iodine Pentafluoride Isobutane Isobutylene

Krypton

Methane Methyl Acetylene Methyl Bromide 2-Methylbutene-l 2-Methylbutene-2 3-Methylbutene-l Methyl Chloride Methyl Fluoride Methyl Mercaptan Monoethylamine Monomethylamine

Neon Nickel Carbonyl Nitric Oxide Nitrogen Nitrogen Dioxide Nitrogen Trifluoride Nitrogen Trioxide Nitrosyl Chloride Nitrous Oxide

Oxygen

1,3 Pentadiene Perfluorobutene-2 Perfluoropropane Phosgene Phosphine Phosphorus Pentafluoride Propane Propylene Research Grade Gases

Silane Silicon Tetrafluoride Sulfur Dioxide Sulfur Hexafluoride Sulfur Tetrafluoride Sulfuryl Fluoride

Tetrafluorohydrazine Trifluoromethyliodide Trimethylamine

Vinyl Bromide Vinyl Chloride Vinyl Fluoride Vinyl Methyl Ether

Xenon

Zero Gases . . . Plus customer specified gas mixtures and a complete line of regulators, valves, flowmeters and other accessory equipment.

(Detach and mail this convenient order form today) CEN-7-7-9

Air Products and Chemicals, Inc. Specialty Gas Department 733 W. Broad Street, Emmaus, Pennsylvania 18049

Please send new 104-page Specialty Gases and Equipment Catalog No. 5068 listing the industry's largest selection of specialty gases, gas mix-tures, and gas handling equipment . . . available nationally from con­venient stock points and 65 district offices.

Name/Title -

Company _ _

Address •-

City/State Zip.

INC.

Total Capability and Product Integrity

JULY 7, 1969 C&EN 19A

Research, clinical, routine, blood, industrial centrifuges — "Porter-Blum" Ultra-microtomes, Cell Fractionators, Homogenizers, acces­sories. Also available on request — 28-page Price List and Ordering Specifications. Send for yours today.

Ask for Bulletin CN-PG7. IVANSORV\LL INC. NORWALK • CONNECTICUT • Q68S6

ANALYTICAL CHEMISTRY CUMULATIVE INDEXES

These complete author and subject indexes of all articles and major features in ANALYTICAL CHEMISTRY will simplify your use of the journals:

I. ANALYTICAL CHEMISTRY Collective Index, Vols. 1-15,1929-1943 $ 2.25 2943

II. ANALYTICAL CHEMISTRY Collective Index, Vols. 16-30,1944-1958 $ 9.00 4458

Indexes I & II Bound together $11.50 2958

III. ANALYTICAL CHEMISTRY Five-Year Collective Index, Vols. 31-35, 1959-1963 $ 7.00 5963

To: Dept. D Special Issues Sales American Chemical Society 1155 Sixteenth St., N.W. Washington, D. C. 29036

• 2943

• 4458

• 2958

• 5963

From:

Name

Street

City State Zip Code

Company Name

• Bill me • Bill company • Check enclosed

N O V E M B E R Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

D E C E M B E R Sun MonTueWedThu Fri Sat

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Scanplast 69. Scandinavian Plastics Exhibition. Gothenburg, Sweden. Nov. 20-26.

Manufacturing Chemists Association. 19th Semiannual Meeting. New York, N.Y. Nov. 25.

10th Seminar on Electrochemistry. Central Electrochemical Research Institute. Karaikudi, India. Nov. 25-28.

American Medical Association. Clinical Convention. Denver, Colo. Nov. 30-Dec. 3.

American Nuclear Society and Atomic Industrial Forum. Winter Meeting. San Francisco, Calif. Nov. 30-Dec. 4.

8th Pan American Congress of Phar­macy and Biochemistry. Caracas, Venezuela. Nov. 30-Dec. 7.

Toilet Goods Association. Scientific Conference. Americana Hotel, New York, N.Y. Dec. 1.

32nd Exposition of Chemical Industries. Coliseum, New York, N.Y. Dec. 1-5.

Synthetic Organic Chemical Manufac­turers Association. Annual Meeting. Hotel Roosevelt, New York, N.Y. Dec. 4.

ACS. Southwest Regional Meeting & Exposition. Tulsa, Okla. Dec. 4 -6 .

ASTM. Winter Meeting. Netherland-Terrace and Hilton Hotels, Cincin­nati, Ohio. Dec. 7-12.

Pharmaceutical Manufacturers Associa­tion. Midyear Meeting. Drake Hotel, Chicago, III. Dec. 8-9.

National Electronics Conference. Con­rad Hilton Hotel, Chicago, III. Dec. 8-10.

2nd U.S. Fluidics Show. National Fluid Power Association. Sheraton-Cleveland Hotel, Cleveland, Ohio. Dec. 10-12.

American Geophysical Union. National Fall Meeting. Jack Tar Hotel, San Francisco, Calif. Dec. 15-18.

American Association for the Advance­ment of Science. 136th Annual Meeting. Boston, Mass. Dec. 2 6 -3 1 .

20A C&EN JULY 7, 1969

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