Laboratory Equipment and Apparatus Flashcards

Flashcards for laboratory equipment and their uses.

Beaker

A simple cylindrical container with a flat bottom used for stirring, mixing, and heating liquids in laboratories.

Erlenmeyer flask (conical flask)

A laboratory flask with a flat bottom, conical body, and cylindrical neck, used for titration and stirring liquids by hand.

Aspirator/Blow Out Bulb

Used for moving air, fluids, etc., by suction.

Test Tube Brush

A brush with nylon bristles attached to a twisted-wire shaft, used to clean test tubes.

Test tube rack

Used in a laboratory to hold/support test tubes containing chemicals.

Wing Top/Fish Tail

Used to bend glass by spreading out the heat more uniformly.

Porcelain spatula

Used for scooping small quantities of powder without scratching delicate surfaces; made of porcelain with high heat resistance.

Medicine Dropper

A tool used for transferring liquids in small amounts.

Stirring rod/stir rod

A piece of laboratory equipment used to mix chemicals and liquids.

Funnel

A pipe with a wide, often conical mouth and narrow stem, used to channel liquid or fine-grained substances into containers with a small opening.

Wire Gauze

Used to support a container during heating and spread the flame evenly; also used to filter liquids and solids.

Spatula

Used to take and handle small quantities of solid chemicals; can also scrape away samples of biological materials or chemical precipitates and residues.

Test tube holder

Used to hold the test tube while heating.

Clay triangle

Used to hold a crucible while it is heated, allowing direct contact of the open flame.

Pipette

A narrow, usually calibrated glass tube used to suction small amounts of liquid for transfer or measurement.

Buret clamp

Used to fasten glassware into place on a ring stand.

Evaporating dish

A piece of laboratory glassware used for the evaporation of solids and supernatant fluids.

Spot Plate

A ceramic plate with small wells used for qualitative analysis and performing reactions on a very small amount of materials.

Deflagrating spoon

An apparatus used to heat small amounts of substances to a high temperature.

Florence flask (boiling flask)

A type of flask used as an item of laboratory glassware, functioning as a container to hold liquids.

Wash bottle

A squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware.

Tripod

A three-legged piece of equipment used as a platform to support flasks, beakers, and other glassware.

Alcohol lamps

Usually found in biology labs for inoculations of bacteria cultures.

Laboratory thermometer

A device that measures temperature or temperature gradient.

Mortar and Pestle

A tool used to crush, grind, and mix solid substances.

Iron ring

Holds glassware such as funnels or other objects, like the wire gauze or clay triangle, for heating with a Bunsen burner; often attached to an iron stand.

Triple beam balance

A type of balance used to determine the mass of samples by weight comparison.

Bunsen burner

Laboratory equipment that produces a single open gas flame, used for heating, sterilization, and combustion.

Watch glass

A circular, slightly convex glass used as a surface to evaporate a liquid, hold solids while being weighed, or cover a beaker.

Ignition tube

Used to hold small quantities of substances undergoing direct heating by a Bunsen burner or other heat source.

Crucible tongs

Pincers usually made of steel, used to take crucibles out of fire or move them from a furnace.

Test tubes

Widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays.

Crucible

Used to hold small amounts of chemicals during heating at high temperatures, with a lid to cover the bowl.

Acid/base burettes

Used to determine the concentration of either the acid or base from the known concentration of the other solution.

Graduated Pipette

Used to measure and transfer specific volumes of liquid accurately, requiring a pipette aid or bulb for suction.

Caliper

Used to measure the distance between two opposite sides of an object, providing precise measurements of thickness, diameter, or depth.

Serological Pipette

Used to transfer liquids with graduation marks that go all the way to the tip, calibrated to deliver the entire measured volume.

Mohr Pipette

Used to transfer liquids, but its graduation marks stop before the tip; not calibrated to deliver the last drop.

Graduated Cylinders

Used for measurement of an amount of liquid.

Hot Plates

Used as sources of heat when an open flame is not desirable.

Ring stand with Rings

Used for holding pieces of glassware in place.

Volumetric Flasks

Used to measure precise volumes of liquid or to make precise dilutions.

Balances

Used to determine the mass of a reagent or object.

Spectrophotometers

Used to measure the absorbance or transmittance of a liquid sample.

Fume Hoods

Used to ventilate noxious or harmful gases.