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