Laboratory EquipmentLaboratory Equipment

Names and UsesNames and Uses

Wednesday, April 19, 2023Wednesday, April 19, 2023

Why Learn This?Why Learn This?

• Lab equipment should only be used for its intended purpose.

• In order to do labs safely, you need to know equipment names to get set up.

• So you can impress others with your vast chemistry knowledge.

TongsTongs

• Used to handle hot items.

• Are specialized to reduce the chance of dropping something.

• Types include: beaker, test tube, and crucible.

Hot Hand/Hot MittsHot Hand/Hot Mitts

• Used to handle hot objects.

• Remember hot and cold glass an metal looks the same - treat everything as if it is HOT!!

BeakersBeakers

• Beakers come in many sizes.

• Can be used for heating if they are PYREX.

• Measurements on beakers are only approximate.

Erlenmeyer FlaskErlenmeyer Flask

• Used to hold liquids.• Triangular shape with

a small opening helps prevent splatters when heating.

• Only use PYREX flasks for heating.

Florence FlaskFlorence Flask

• This kind of flask usually just holds liquids

• The small opening makes it easy to pour.

• Volumetric flasks have an etched line so you can measure accurately.

Test TubesTest Tubes

• Once again there are many different sizes.

• Used to contain or react small amounts of chemicals.

• Cleaned with a test tube brush.

Graduated CylindersGraduated Cylinders

• Come in various sizes.

• Used to accurately measure liquids.

• Make sure the collar is pushed up towards the top so it won’t break if it gets knocked over.

Heating Things UpHeating Things Up

• You use several pieces of equipment to safely heat things.

• These include: bunsen burners, iron rings, wire gauze, clay or wire triangles, and clamps.

MeniscusMeniscus

Heating Things UpHeating Things Up

More HeatingMore Heating

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Hot PlatesHot Plates

• Hot plates are less dangerous than an open flame.

• Some have automatic stirrers.

Strikers and MatchesStrikers and Matches

• A striker is a device used to light a burner.

• We will use strikers, NOT matches to light fires.

Crucibles and Evaporating Crucibles and Evaporating DishesDishes

• Used to dry things out either over a flame, on a hot plate, or in an oven.

• Crucibles have lids to prevent splatter.

Triple Beam BalanceTriple Beam Balance

• Measures the Mass of an object

Electronic BalanceElectronic Balance

• This balances is electronic.

• Accuracy is very important when you measure out chemicals.

• The tare button sets the balance to zero.

Spatulas and SpoonsSpatulas and Spoons

• Used to transfer chemicals from the bulk container to the balance for measuring.

• Always use a separate spatula for each chemical.

ThermometersThermometers

• Use alcohol thermometers if possible.

• Check to make sure the column doesn’t have gaps

• NEVER rest a thermometer in heating glassware.

BuretsBurets

• Burets are very accurate devices used to measure liquids.

• They have a device called a stopcock at the bottom.

Miscellaneous EquipmentMiscellaneous Equipment

• Other small pieces you might use during a lab include: forceps, microplates, test tube racks, droppers and stoppers.

Now you know your chemistry lab equipment.