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Thames River Chemical, 905-681-5353 (Phone), 905-681-5377 (Fax) 3228 South Service Road, Unit #112, Burlington, Ontario, L7N 3H8

Material Safety Data for: Calcium Chloride, flake

1. PRODUCT INDENTIFICATION Name calcium chloride Synonyms none CAS# 10043-52-4 EC# 233-140-8 Product Uses deicing roads etc, dust control, accelerant for concrete setting, mfg of antifreeze brines, heat transfer fluids, & other uses 2. INGREDIENTS % TWAEV / TLV

mg/m3LD50

ORAL(mg/kg) SKIN

LC50 mg/m3INHALATION

Calcium Chloride 83% not listed 1000 5000 160 3. (a) HAZARDS SUMMARY Hazards, Quick Guide: may irritate skin on prolonged contact; severely irritating to eyes, potential for permanent damage Canada WHMIS D 2B Key: B 2 Flash Point 38oC & 160mg/m3 (rat)

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(Calcium Chloride, flake, contd) page 2 4. FIRST AID SKIN: Wash with plenty of water. Remove contaminated clothing and do not reuse until thoroughly laundered. EYES: Wash eyes with plenty of water, holding eyelids open. Seek medical assistance promptly if there is irritation. INHALATION: Remove from contaminated area promptly. CAUTION: Rescuer must not endanger himself! If breathing stops, administer artificial respiration and seek medical aid promptly. INGESTION: Give plenty of water to dilute product. Do not induce vomiting (NOTE below). Keep victim quiet. If vomiting

occurs, lower victims head below hips to prevent inhalation of vomited material. Seek medical help promptly. Inadvertent inhalation of vomited material may seriously damage the lungs. The danger of this is greater than the risk of poisoning through absorption of this relatively low-toxicity substance. The stomach should only be emptied under medical supervision, and after the installation of an airway to protect the lungs. 5. PHYSICAL PROPERTIES Odour & Appearance odourless, white, deliquescent* flakes (*absorb moisture from air and dissolve) Odour Threshold not known - odourless Vapour Pressure none does not form vapour Evaporation Rate (Butyl Acetate = 1) none does not volatilise Vapour Density (air = 1) not applicable does not form vapour Boiling Range 1670oC / 3038oF Melting Point 772oC / 1422oF moisture loss from hydrated molecule at 176oC1 Specific Gravity (20/20oC) Water Solubility 425grams per litre (20oC / 68oF) Also soluble in ethanol, acetone, acetic acid Viscosity not applicable solid material pH 8-9 Molecular Weight 111grams per mole (anhydrous); 147grams per mole (dihydrate) 1. Calcium chloride absorbs moisture from air rapidly, first becoming hydrated solid, then dissolving in its own puddle. Even anhydrous product often contains some moisture. 6. FLAMMABILITY & FIRE FIGHTING Flash Point cannot burn Autoignition Temperature cannot burn Flammable Limits cannot burn Combustion Products hydrogen chloride, chlorine gas and calcium oxide may form in fire (above 1600oC) Firefighting Precautions as for materials sustaining fire; firefighters must wear SCBA Static Charge Accumulation cannot accumulate a static charge on agitation 7. STABILITY / REACTIVITY Dangerously Reactive With bromine trifluoride; methyl vinyl ether polymerises with CaCl2; Also Reactive With may cause hot water to boil; reacts with zinc (galvanised metal) to cause release of hydrogen; corrodes steel, some stainless steels (eg: 302, 310), brass, some aluminum alloys Stability stable; will not polymerize Decomposes in Presence of not known Decomposition Products none apart from Hazardous Combustion Products Sensitive to Mechanical Impact no NOTE: Calcium chloride generates heat on dissolution in water. This action could cause boiling.

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(Calcium Chloride, flake, contd) Page 3 8. PROTECTIVE EQUIPMENT / EXPOSURE CONTROL TWAEV / TLV not listed STEL not listed Ventilation mechanical ventilation not required Hands no special hand protection required; rubber, neoprene or PVC gloves may be worn Eyes safety glasses with side shields always protect the eyes Clothing no special protective clothing required 9. HANDLING & STORAGE Calcium chloride avidly and rapidly absorbs moisture from the environment. Store in a dry environment. Ensure that containers (bags, super-sacks) are protected from puncture damage which can expose the product to air. Calcium chloride dust attracts moisture, creating a moist sheen on surfaces. This moisture will not evaporate. Depending on the floor texture, these moist patches may be slippery and hazardous. Although calcium chloride is not considered irritating to skin, prolonged exposure can result in skin lesions. This is probably caused by the very high osmotic pressure of the solutions which form around the solid. This, in turn, will denature skin proteins causing the damage which will heal. Similar damage can be caused by calcium chloride flakes or dust entering the eye. Here the damage may be permanent, affecting vision. Avoid skin contact and wash work clothes frequently. An eye bath and safety shower must be available near the workplace. 10. SPILL PROCEDURES Leak Precaution dyke to control spillage and prevent environmental contamination; even though the product is a solid, it is deliquescent; a spill will dissolve itself in moisture taken from the atmosphere; the resulting puddle must be contained. Handling Spill ventilate contaminated area; sweep, shovel and store in closed containers for disposal; rinse moist patches on floor with water; absorb residue on an inert sorbent, sweep, shovel, & store in closed containers for disposal 11. DISPOSAL Waste Disposal do not flush to sewer, may be put in sanitary landfill ask local authorities if this is acceptable 12. ENVIRONMENTAL INFORMATION Bioaccumulation this product is not a bioaccumulator Biodegradation this product degrades readily and rapidly in the presence of oxygen Abiotic Degradation this product reacts with atmospheric hydroxyl radicals; its estimated half-life in air is Mobility in soil, water this product is water soluble and will move readily in soil and water Aquatic Toxicity LC50 (Fish, 96hr) 10,000 & 13,400mg/litre (gambusia affinis), 10,650mg/litre (lepomis macrochirus) LC50 (Amphibian, 72hr) 6360mg/litre (rana breviceps) frog EC50 (Crustacea) 3526mg/litre (daphnia magna, 24hr), 1285 & 3005mg/litre (daphnia magna, 48hr), 1600mg/litre (nitocra spinipes, 96hr), 8300mg/litre (daphnia hyalina)

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(Calcium Chloride, flake, contd) page 4 13. TRANSPORT REGULATIONS Canada TDG PIN UN-not regulated for transport Shipping Name not regulated for transport Class not regulated for transport Packing Group not regulated for transport U.S.A. 49 CFR PIN UN- not regulated for transport Shipping Name not regulated for transport Class not regulated for transport Packing Group not regulated for transport Marine Pollutant not a marine pollutant 14. EMERGENCY INFORMATION Canada Call CANUTEC (collect) (613) 996-6666 U.S.A. Call CHEMTREC (800) 424-9300 15. REGULATIONS Canada DSL on inventory U.S.A. TSCA on inventory Europe EINECS on inventory Allowable Tolerances: Residues of calcium chloride requirement of a tolerance when used as a stabilizer in accordance with good agricultural practices as inert (or occasionally active) ingredients in pesticide formulations applied to growing crops or to raw agricultural commodities after harvest. Calcium chloride is exempted from the requirement of a tolerance when used as a stabilizer in accordance with good agricultural practice as inert (or occasionally active) ingredients in pesticide formulations applied to animals. FIFRA Requirements: As the federal pesticide law FIFRA directs, EPA is conducting a comprehensive review of older pesticides to consider their health and environmental effects and make decisions about their future use. Under this pesticide reregistration program, EPA examines health and safety data for pesticide active ingredients initially registered before November 1, 1984, and determines whether they are eligible for reregistration. In addition, all pesticides must meet the new safety standard of the Food Quality Protection Act of 1996. Pesticides for which EPA had not issued Registration Standards prior to the effective date of FIFRA, as amended in 1988, were divided into three lists based upon their potential for human exposure and other factors, with List B containing pesticides of greater concern and List D pesticides of less concern. Calcium chloride is found on List D. Case No: 4051; Pesticide type: Insecticide (Molluscicide), Fungicide, Herbicide, Antimicrobial; Case Status: RED Approved 09/93; OPP has made a decision that some/all uses of the pesticide are eligible for reregistration, as reflected in a Reregistration Eligibility Decision (RED) document.; Active ingredient (AI): Calcium chloride; AI Status: The active ingredient is no longer contained in any registered pesticide products ... "cancelled." FDA Requirements: Substance added directly to human food affirmed as generally recognized as safe. Calcium chloride used as a general purpose food additive in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice. Calcium chloride used as a sequestrant in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice. Manufacturers, packers, and distributors of drug and drug products for human use are responsible for complying with the labeling, certification, and usage requirements as prescribed by the Federal Food, Drug, and Cosmetic Act, as amended (secs 201-902, 52 Stat. 1040 et seq., as amended; 21 U.S.C. 321-392). The Approved Drug Products with Therapeutic Equivalence Evaluations List identifies currently marketed prescription drug products, incl calcium chloride, approved on the basis of safety and effectiveness by FDA undersections 505 and 507 of the Federal Food, Drug, and Cosmetic Act. 16. PREPARATION INFORMATION Prepared for Thames River Chemical by Peter Bursztyn, (705) 734-1577 With data from RTECS, Haz. Substance Data Base, Cheminfo (CCOHS), IUCLID Datasheets (European Chem. Substance Info. System), & others, as available Preparation Date: August 2009 Revision Date: -