Lab Equipment September 3, 2008. Test Tube Collecting Bottle Usually for collecting gas, but can...

Lab Equipment

September 3, 2008

Test Tube

Collecting Bottle

• Usually for collecting gas, but can collect liquids from an experiment as well.

Erlenmeyer Flask

• Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.

Florence Flask

• Rarely used in first year chemistry, it is used for the mixing of chemicals. Narrow neck prevents splash exposure.

Beaker

• Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.

Graduated Cylinder

• A graduated cylinder is used to measure volumes of liquids.

Spring Scale

• measures weight by the distance a spring deflects under its load.

Triple Beam Balance

• used in the laboratory to determine the weight or mass of things

Electronic Balance

• Measures weight/ mass digitally

Thermometer

• device that measures temperature

Medicine Dropper

• Used to transfer a small volume of liquid

Thistle Tube

• Used to add liquid to an existing system

Funnel

• A funnel is used to aid in the transfer of liquid from one vessel to another.

Delivery Tube

• Bent Glass Tubing: gases which evaporate when a liquid is heated can be 'directed' to another part of the apparatus.

Rubber Tubing

• Transfers liquid or gas from one place to antoher

Test Tube Holder

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

Forceps

• used to pick up small objects.

Clamp

• Utility clamps are used to secure test tubes, distillation columns, and burets to the ringstand.

Tongs

• Beaker tongs are used to move beakers containing hot liquids

• Crucible Tongs for handling hot crucibles

Ring clamp

• Iron rings connect to a ringstand and provide a stable, elevated platform for the reaction.

Clamp Stand

• Ringstands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.

Test Tube Stand

Bunsen Burner

• Bunsen burners are used for the heating of nonvolatile liquids and solids.

Alcohol Burner

• In place of bunsen burner; provides a hot, consistent flame.

Wire Gauze

• Wire gauze sits on the iron ring to provide a place to stand a beaker

Evaporating Dish

• The evaporating dish is used for the heating of stable solid compounds and elements.

Safety Goggles

• Eye protection from chemicals, etc

Hot Plate

• small electric stove used in laboratory settings to heat glassware

Crucible and Cover

• Crucibles are used for heating certain solids, particularly metals, to very high temperatures.

Clay Triangle

• The clay triangle is used as a support for porcelein crucibles when being heated over a Bunsen burner.

Mortar and Pestle

• used to crush, grind, and mix substances.

Stopper

• Rubber stoppers are used to close containers to avoid spillage or contamination.

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

Stirring Rod

• A glass rod is used to manually stir solutions.

Spatula

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

• Chemicals should never be transferred with your bare hands.

Scoop

Watch Glass

• A watch glass is used to hold a small amount of solid, such as the product of a reaction.

Hand Lens

• Simple microscope

Petri Dish and Cover

• Used to culture cells/ bacteria

Glass Slide with Coverslip

• he object to be viewed is typically placed on the middle of the slide with another, much thinner square of glass placed over the specimen…creates even surface for viewing

Dissecting Tools

• Scalpel: small but extremely sharp knife used for surgery or dissection

• Dissecting Needles: helps you cut open the object you are dissecting