LAB EQUIPMENT
Test Tube & Boiling Tube
A test tube is used to hold, mix, or heat small quantities of solid or liquid chemicals. They are made of regular glass, plastic or borosilicate glass (which resists heat. Bigger and thicker test tubes made of borosilicate are called boiling tubes
Test Tube Holder
A test tube holder is useful for holding a test tube which is too hot to handle.
Test Tube Brushes
Test tube brushes are used to clean test tubes and graduated cylinders.
Test Tube Racks
Test tube racks are for holding and organizing test tubes on the laboratory counter. Plastic racks may melt in contact with very hot test tubes.
Graduated Cylinders
A graduated cylinder is used to measure volumes of liquids.
Beaker
Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.
Beaker Tongs
Beaker tongs are used to move beakers containing hot liquids
Florence Flask
They are used for the mixing of chemicals. The narrow neck prevents splash exposure.
Volumetric Flask
These are calibrated to contain a precise volume at a particular temperature. Volumetric flasks are used for preparation of solutions with a specific concentration.
Round Bottom Flask
Round bottom flask is used to heat up liquids. The round bottom shape allows more uniform heating and/or boiling of liquid. The most common use is in the distillation process.
Erlenmeyer / Conical Flask
Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated
Flask Brushes
Flasks brushes are used to clean flasks, volumetric flasks and big bottles.
Condensers
Condensers are used to collect the gases from distillation and cool them down, so the liquids are retrieved.
Watch Glass
A watch glass is used to hold a small amount of solid, such as the product of a reaction.
Plastic Disposable Pipette
Plastic Pipettes are used to transfer a small volume of liquid.
Micropipette
Micropipettes are used to transfer very small volume of liquid.
Mohr Pipette
A Mohr pipette measures and delivers exact volumes of liquids
They have a graduated scale to measure different volume of liquids.
Volumetric Pipette
Volumetric pipettes measure and deliver very accurate volume of liquids.
They have fixed volumes.
Most common volumetric pipettes deliver 10 mL, 25 mL or 50 mL.
Since this pipette is marked ‘TD,’ meaning ‘To deliver,’ the small amount of liquid remaining at the tip should not be blown out.
Glass / stirring Rod
A glass rod is used to manually stir solutions. It can also be used to transfer a single drop of a solution.
Delivery Tubes
Delivery tubes are used to connect containers and collect gases and liquids produced in chemical reactions. Different shapes are uses in different circumstances.
Burette
Burettes are used to dispense measured amounts of a solution into a container.
Double Burette Clamp
Double Burette clamps are used to burettes – long graduated tubes used in titration.
Funnel
A funnel is used to transfer liquids from one vessel to another.
With the aid of a filter paper, it can be used to separate an undissolved solid from a liquid mixture.
Filter Paper
Is a piece of porous paper that is used to separate solids from liquids. On the right you have the correct procedure to fold and use it.
Büchner Funnel
They are used in filtration using vacuum. They are made of ceramics, porcelain or glass.
Büchner flask
Also known as a vacuum flask, filter flask, suction flask, side-arm flask, is a thick-walled Erlenmeyer flask with a short glass tube and hose barb protruding about an inch from its neck.
Separating Funnel
They are used to separate two immiscible liquids using the valve at the bottom.
Gas Collecting Bottle
We use gas collecting bottles when large volumes of gases are produced and must be collected by the displacement of water or other liquids.
Rubber Stoppers
Rubber stoppers are used to close containers to avoid spillage or contamination.
Containers should never be heated when there is a stopper in place.
Spot Plates
Spot plates are used when we want to perform many small-scale reactions at one time. We will use these many times during the year.
Forceps/Twizzers
Forceps (or tweezers) are used to pick up small objects.
Washing Bottles
A wash bottle has a spout that delivers a wash solution to a specific area.
Use ONLY DISTILLED WATER to fill out these bottles.
Weighing Boat
Weighing boats are used to weigh solids that will be transferred to another vessel.
Evaporating Dish
The evaporating dish is used for the heating of stable solid compounds and elements.
Mortar and Pestle
It is a tool used to grind and mix substances. It is also used in the kitchen to grind and mix food.
Crucible
Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
Crucible Tongs
Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
Clay Triangle
The clay triangle is used as a support for porcelain crucibles when being heated over a Bunsen burner.
Spatulas
Spatulas are used to dispense solid chemicals from their containers.
Scoopulas
Scoopulas are used to dispense solid chemicals from their containers.
Bunsen Burner
Bunsen burners are used for the heating of nonvolatile liquids and solids
Striker
Strikers are used to light Bunsen burners.
The flints on strikers are expensive. Do not operate the striker repeatedly just to see the sparks!
Triangular File
Triangular files are used primarily to cut glass rod, a skill that your instructor will share with you when it becomes useful.
Ring Stand
Ring stands are a safe and convenient way to hold glassware that require heating using a Bunsen burner.
Utility Clamps
Utility clamps are used to secure test tubes, distillation columns, and burettes to the ring stand.
Iron Rings
Iron rings connect to a ring stand and provide a stable, elevated platform for the reaction.
Wire Gauze
Wire gauze sits on the iron ring to provide a place to stand a beaker.
On older wire gauze, the white material was made of carcinogen asbestos
Ceramic Fiber Pad
A 4” x 4” square of ceramic fiber, it provides a surface for hot beakers so that the beaker does not come in contact with a cold countertop and shatter.
