chemical equipments

8/12/2019 Chemical Equipments

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CHEMIC L EQUIPMENTS


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BEAKER GLASS


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BEAKER GLASS

Beakers is usually used as containers in which

to mix various liquids or as measuring devices.

Beakers are commonly made of glass, but can

also be in metal or certain plastics.


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VOLUMETRIC FLASK


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VOLUMETRIC FLASK

Volumetric flask(measuring flaskor

graduated flask) is calibrated to contain a

precise volume at a particulartemperature.

It is made of glass or plastic and consists

of a flat bottomed bulb with a long neck,usually fitted with a stopper.


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TEST TUBE


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TEST TUBE

Test tubes also known as a culture tube

or sample tubeare widely used by

chemist to hold, mix, or heat smallquantities of solid or liquid chemicals,

especially for qualitative experiments and

assays.


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Test tubes for physics and chemistry are

usually made of glass for better resistanceto heat and corrosive chemicals and

longer life. Culture tubes for biology are

usually made of clear plastic and are often

discarded after use.


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MIXING CYLINDER


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MIXING CYLINDER

Mixing Cylinder is used to accurately

measure the volume of a liquid.

the largest graduated cylinders are madeof polypropylene for its excellent chemical

resistance or polymethylpentene for its

transparency, making them lighter andless fragile than glass.


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ERLENMEYER FLASK


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ERLENMEYER FLASK

An Erlenmeyer flask, also known as a

conical flask are used in chemistry labs

for titration, e.g. for pH, and used for thepreparation of mixtures which must be

mixed without stirring.


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BURETTE


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BURETTE

A burette(also buret) is is used to

dispense known amounts of a liquid

reagent in experiments for which suchprecision is necessary, such as in a

volumetric analysis. Burettes are

extremely accurate, and have very small

accuracy tolerances.


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WATCH GLASS


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WATCH GLASS

watch glassis a circular, slightly piece of

glass used in chemistry as a surface to

evaporate a liquid, to hold solids whilebeing weighed, or as a cover for a beaker.


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ALCOHOL THERMOMETER


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ALCOHOL THERMOMETER

Alcohol thermometeror spirit

thermometer is used to measure

temperatures from 115C (freezing pointof alcohol) to785C (boiling point of alco

hol). Because alcohol is a volatile fluid, the

column in the

thermometer frequently becomes sepa

rated by mechanical shock.


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FLAT BOTTOMED FLASK


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FLAT BOTTOMED FLASK

Flat bottomed flask is used to mix liquids

and carry out different chemical

experiments just like their round bottomedcounterparts. This may involve observing

how different chemicals react to each

other or when heated with a flame for

example.


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It can be used to store liquids in a fridge or

other location as there is no risk of themfalling over and spilling.

If you already mixed some components

together and want to see how they reactover the top of a Bunsen Burner, the flask

can be left standing upright on a stand

that is covering the flame. Due to the flat

bottom of the flask, the heat can be

distributed evenly throughout the liquid.


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FUNNEL


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FUNNEL A funnelis a pipe with a wide, often

conical mouth and a narrow stem. It is

used to channel liquid or fine-grained

substances into containers with a smallopening. Without a funnel, spillage would

occur.

Funnels are usually made ofstainless,steel,alumunium,glass or plastic.


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