Analía Bellizzi – Chemistry Classes

Ronald Reagan Senior High School



lab equipment blue

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.


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

beaker tongs

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.

volumetric flask equipment

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.

round bottom

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

conical flask

Flask Brushes

Flasks brushes are used to clean flasks, volumetric flasks and big bottles.

flask brushes


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.

watch glass

Plastic Disposable Pipette

Plastic Pipettes are used to transfer a small volume of liquid.

plastic pipette


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.

Mohr pipette

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.


vol pipette
pipette tip

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.

stirring rod

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.


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.


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 (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.


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 are used to dispense solid chemicals from their containers.


Scoopulas are used to dispense solid chemicals from their containers.

Bunsen Burner

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


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.