Lab Equipment

Beaker

Normally made of glass. A cup like device used mainly

for heating up a liquid.

Beakers hold solids or Beakers hold solids or liquids that will not release liquids that will not release gases when reacted or are gases when reacted or are

unlikely to splatter if stirred unlikely to splatter if stirred or heated.or heated.

Erlenmeyer Flask

The narrow neck makes it easy to mix substances

without spilling.

A cup like device that is pyramidal shaped.

Erlenmeyer flasks hold Erlenmeyer flasks hold solids or liquids that may solids or liquids that may

release gases during a release gases during a reaction or that are likely to reaction or that are likely to splatter if stirred or heated.splatter if stirred or heated.

Florence FlaskRarely used in first Rarely used in first year chemistry, it year chemistry, it

is used for the is used for the mixing of mixing of

chemicals. Narrow chemicals. Narrow neck prevents neck prevents

splash exposure.splash exposure.

A florence flask is a volumetric flask.

Volumetric

A volumetric device is calibrated to measure a

specific amount. Usually only one mark is on it to indicate when you have reached that amount.

A device that usually has no marking that is

good for any kind of storage. Also known as a gas collecting bottle.

Wide Mouthed Bottle

We use gas collecting We use gas collecting bottles when large volumes bottles when large volumes of gases are produced, and of gases are produced, and

must be collected by the must be collected by the displacement of water.displacement of water.

Separatory Funnel

Used to separate polar compounds that have separated into layers.

Wash Bottle

A bottle which should contain distilled water for use and cleaning.

Thermometer

A device used to measure the amount of heat

Stirring Rodis used to manually stir is used to manually stir

solutions. It can also be used solutions. It can also be used to transfer a single drop of a to transfer a single drop of a

solution.solution.

Cleaning Brush

designed for cleaning the inside of glassware. There are different sizes for each type of

glassware.

Forceps are used to pick up small are used to pick up small

objects.objects.

Test Tube Tongs

is useful for holding a test tube is useful for holding a test tube which is too hot to handle.which is too hot to handle.

Striker

are used to light Bunsen burners. The are used to light Bunsen burners. The flints on strikers are expensive. Do not flints on strikers are expensive. Do not

operate the striker repeatedly just to see operate the striker repeatedly just to see the sparks!the sparks!

Crucible Tongs

For handling hot For handling hot crucibles; also crucibles; also used to pick up used to pick up

other hot objects. other hot objects. NOTNOT to be used for to be used for

picking up picking up beakers!beakers!

Extension ClampUsed on a stand or pole, it

clamps something further out or used when more clamps

are needed.

Buret Clamp

Also known as test tube clamps or Also known as test tube clamps or utility clamps. Utility clamps are utility clamps. Utility clamps are

used to secure test tubes, used to secure test tubes, distillation columns, and burets to distillation columns, and burets to

the ringstand.the ringstand.

Clamp Holder Used to hold the

extension clamp.

Dropping Pipet

is used to transfer a small is used to transfer a small volume of liquid (usually less volume of liquid (usually less

than one mL).than one mL).

Bunsen Burner

are used for the are used for the heating of heating of nonvolatile nonvolatile liquids and liquids and

solids. Is fueled solids. Is fueled by some type of by some type of

gas.gas.

Watch Glass

is used to hold a small amount is used to hold a small amount of solid, such as the product of of solid, such as the product of

a reaction.a reaction.

Wire Gauze

sits on the iron sits on the iron ring to provide ring to provide

a place to a place to stand a beaker.stand a beaker.

Crucible

are used for are used for heating certain heating certain

solids, solids, particularly particularly

metals, to very metals, to very high high

temperatures.temperatures.

Triangle

is used as a is used as a support for support for porcelain porcelain

crucibles when crucibles when being heated being heated

over a Bunsen over a Bunsen burner.burner.

Mortar and

Pestle

Used to grind stuff into a fine powder.

Evaporating Dish

is used for the is used for the heating of stable heating of stable solid compounds solid compounds

and elements. and elements. Also used to Also used to

separate a solid separate a solid suspended in a suspended in a liquid by boiling liquid by boiling away the liquid.away the liquid.

Graduated Cylinder

is used to measure volumes of is used to measure volumes of liquids.liquids.

Volumetric Flask

A flask which holds a specific

amount of liquid. Is used to mix ppm and ppb solutions.

Graduated Pipet

measures and measures and delivers exact delivers exact

volumes of volumes of liquids.liquids.

Volumetric Pipet

A pipet which will measure a

specific amount of

liquid.

Buret A long graduated tube used to hold liquid and release

the liquid with extreme control.

Most often used in neutralizing a base.

CondenserA device used to condense a

gas into a liquid by surrounding the gas with a

cool liquid.

Running water is most often used.

StandUsed as a Used as a safe and safe and

convenient convenient way to way to

perform perform reactions reactions

that that require require heating heating using a using a Bunsen Bunsen burner.burner.

Rings

connect to a stand and provide a stable, connect to a stand and provide a stable, elevated platform for the reaction.elevated platform for the reaction.

Funnel is used to aid in the transfer of liquid is used to aid in the transfer of liquid

from one vessel to another.from one vessel to another.

Test Tubes

Tubular devices used for mixing, and/or

heating stuff together.

Test Tube Rackare for holding and organizing test tubes are for holding and organizing test tubes on the laboratory counter. Plastic racks on the laboratory counter. Plastic racks may melt in contact with very hot test may melt in contact with very hot test

tubes.tubes.

Rubber Stoppers

are used to close containers to avoid are used to close containers to avoid spillage or contamination.Containers spillage or contamination.Containers

should never be heated when there is a should never be heated when there is a stopper in place.stopper in place.

Spot Plates are used when are used when

we want to we want to perform many perform many

small scale small scale reactions at reactions at

one time.one time.

Litmus Paper

RedRed litmus paper is litmus paper is used to identify bases.used to identify bases.

BlueBlue litmus paper is litmus paper is used to identify acids.used to identify acids.

Weighing Boat are used to are used to

weigh weigh solids that solids that

will be will be transferred transferred to another to another

vesselvessel..

Spatulas

are used to are used to dispense solid dispense solid chemicals from chemicals from their containers. their containers.

Chemicals Chemicals should never be should never be transferred with transferred with

your bare your bare hands.hands.

Beaker Tongs

are used to move are used to move beakers containing beakers containing

hot liquidshot liquids

Triangular File

are used primarily to are used primarily to cut glass rodcut glass rod

Double Buret ClampsDesigned to hold two burets to

make titration easier.

Pressed Fiber Pad

A 4” x 4” square of ceramic A 4” x 4” square of ceramic fiber, it provides a surface for fiber, it provides a surface for hot beakers so that the beaker hot beakers so that the beaker

does not come in contact with a does not come in contact with a cold countertop and shatter.cold countertop and shatter.

Capillary Action

is the ability of a narrow tube to draw a liquid upwards against the

force of gravity.

Meniscus

is a curve in the surface of a liquid,

produced in response to the surface of the container or another

object. It can be either concave or convex.