Lab Equipment Beaker Hold solids or liquids that

Lab Equipment

Beaker Hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.

Erlenmeyer Flask Hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.

Volumetric Flask A type of laboratory flask, calibrated to contain a precise volume at a particular temperature.

Graduated Cylinder Used to measure volumes of liquids.

Hot Hands Protects hands from hot glassware

Bunsen Burner Used for the heating of nonvolatile liquids and solids.

Funnel Used to aid in the transfer of liquid from one vessel to another.

Medicine Dropper Used to transfer a small volume of liquid (less than one m. L). On top of each medicine dropper is a “rubber bulb”

Hand Lens/Magnifying Glass A convex lens that is used to produce a magnified image of an object.

Mohr Pipet Measures and delivers exact volumes of liquids.

Metric ruler Used to measure length (usually has the English System and the Metric System on the same ruler)

Safety Goggles Used to protect eyes from chemicals

Test Tubes 13 x 100 mm test tubes Ignition tube 10 x 75 mm test tubes Used to hold, heat, or mix small amounts of a substance

Test Tube Racks Hold and organize test tubes on the laboratory counter. Plastic racks may melt in contact with very hot test tubes.

Thermometer A narrow, sealed glass tube marked with graduations with a bulb at one end containing alcohol that expands and contracts in the tube with heating and cooling.

Triple-Beam Balance Used to measure mass Digital balances can also be used and are usually more accurate

Glass Stirring Rod Used to manually stir solutions. It can also be used to transfer a single drop of a solution. May have a rubber police attached to help remove material from beakers.

Test Tube Holder Used for holding a test tube which is too hot to handle. Also called a test tube clamp.

Crucible Used for heating certain solids, particularly metals, to very high temperatures.

Evaporating Dish Used for the heating of stable solid compounds and elements.

Watch Glass Used to hold a small amount of solid, such as the product of a reaction.

Beaker Tongs Used to move beakers containing hot liquids

Crucible Tongs Used for handling hot crucibles; also used to pick up other hot objects. NOT to be used for picking up beakers!

Mortar and Pestle A tool for pounding or grinding substances or chemicals

Wash Bottle Has a spout that delivers a wash solution to a specific area. Distilled water is the only liquid that should be used in a wash bottle.

Pipette One-piece, usually made from flexible soft plastic to deliver or transfer small volumes of liquids

Pinch clamp A clamp for compressing a flexible pipe, as a rubber tube, in order to regulate or stop the flow of a fluid.

Clay Triangle Used as a support for porcelain crucibles when being heated over a Bunsen burner.

Spatulas Used to dispense solid chemicals from their containers. Chemicals should never be transferred with your bare hands.

Strikers Used to light Bunsen burners. The flints on strikers are expensive. Do not operate the striker repeatedly just to see the sparks!

Triangular File Used primarily to cut glass rod.

Forceps AKA tweezers, used to pick up small objects.

Spot Plates Used to perform many small scale reactions at one time. Also known as a well plate.

Scoopula A spatula-like scoop utensil used primarily to transfer solids

Test Tube Brushes Used to clean test tubes and graduated cylinders. Forcing a large brush into a small test tube will often break the tube.

Ringstand Safe and convenient way to perform reactions that require heating using a Bunsen burner.

Ringstands and their Components Wire Gauze Sits on the iron ring to provide a place to stand a beaker. On older wire gauze, the white material is asbestos!

Ringstands and their Components Iron Rings Connect to a ringstand provide a stable, elevated platform for the reaction.