Labware Picture Glossary

Home , Burette clamp, Evaporating dish, Separatory funnel

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Pack your lab like a pro with this chemistry labware guide. Complete with images, names, and types of common lab items and their uses, this picture glossary will help you select the right supplies.

Popular Glassware Griffin beakers are used to mix Erlenmeyer flasks, like beakers, chemicals, dissolve into solutions, can be used to mix, dissolve into heat or cool solutions, and hold sand solutions, and heat or cool solutions. or water baths. They typically have In addition, they can be plugged with graduations, but they are not very stoppers and used to catch vapor or accurate. condensed liquid. Graduations are not very accurate.

Florence/boiling flasks are round Volumetric flasks are used to to provide uniform heating or boiling accurately prepare solutions. A of liquids. They can be used to mix weighed amount of solid chemical is or store solutions as well as collect placed at the bottom, and the liquid vapor in distillation processes. solvent is added until the fill line is They can have either round or flat reached. bottoms.

Filtering flasks are used to filter Graduated cylinders are used for mixtures through a funnel and filter precise and accurate measurement. paper. A tube near the top prevents Smaller sizes can be more accurate, unwanted pressure buildup. The but hold less volume, while larger process can be accelerated with a sizes sacrifice accuracy for volume. vacuum pump.

Test tubes are used to observe Burettes are used to measure chemical reactions, mix solutions, liquids drop-by-drop for titration heat solutions, melt or burn solids, experiments or other experiments and perform chemical analysis. requiring precise measurement.

Bottles are used to store solid and Pipettes or droppers (pictured) are liquid chemicals for extended periods used to measure or transfer liquids of time. Barnes bottles (pictured) a few drops at a time. Mohr pipettes are small bottles with dropper lids for are graduated pipettes used for drop-by-drop measurement. precise measurement.

Condensers are used to condense Watch glasses can be used to cover chemical vapor into a liquid. This is beakers, evaporate water from done by sending the vapor through a solutions, weigh out solid chemicals, long (often coiled) glass tube to cool. or observe samples under a stereo microscope.

Evaporating dishes are used to Crucibles are used to melt or burn separate water and solids from solid chemicals over a burner. a solution by allowing the water They are made from heat-resistant to evaporate off into the air. This ceramics to prevent breakage. is usually done by heating the evaporating dish over a burner.

A mortar and pestle is used to Funnels are used to pour liquids into crush up solid chemicals into smaller narrow-mouth containers such as pieces, or to grind solids into fine flasks and bottles.Buchner funnels powder. This makes dissolving solids (pictured) are special two-piece into solutions much easier. funnels for filtering mixtures through filter paper into a filtering flask.

Thermometers assure accurate A separatory funnel separates temperature measurements in two immiscible liquids of different labwork. Find partial immersion, densities. The heaver liquid settles wall mounted, indoor/outdoor, at the bottom to be drawn off. combinations with hygrometers and Separatory funnels are also used to hydrometers, digital, and infrared. slowly add a reagent in a distillation or reaction process.

Popular Lab Equipment Lab burners come in many different Hot plates are typically used to heat styles and usually run on alcohol, glassware and the liquid inside. They propane, or butane. They are used to can be combined with a magnetic heat or boil solutions, burn or melt stirrer to both mix and heat the liquid solid chemicals, or form glass tubing. contents all at once. They have more precise temperature control than an alcohol lamp or burner.

A centrifuge is a motorized device A scissor jack is used to elevate used to spin liquids at high speeds. equipment for various lab setups. In labs, a centrifuge uses gravity The height is adjustable for flexibility. and centrifugal force to separate Use to elevate lab heaters and substances with different mass. An stirrers, beakers, flasks, and other example is separating particles from glassware. Scissor jacks are often a liquid. useful in distillations.

Rubber tubing is used to connect Wash bottles are plastic bottles evaporating chambers, flasks, with a nozzle at the top for rinsing condensers, and other glassware, glassware, cleaning/disinfecting, or usually in distillation processes. applying solutions. They can be filled with a variety of reagents, such as water or alcohol.

Support stands come in different Ring supports are also called iron sizes and styles. Support stands are rings or ring clamps. Used with a ring versatile and can have various clamps stand; ring supports raise and secure or rings mounted to them to hold an object above a work surface. For several pieces of equipment at once. example, a round bottom flask or separatory funnel.

Use universal clamps to hold A burette clamp is a metal tool that common labware like plates, beakers, attaches to a ring stand at various flasks, test tubes, and more. With heights. It’s used to hold a burette, a ring stand and more, a universal test tube, flask, etc. Double burette clamp can set up complex distillation clamps hold two burettes at once. Its apparatus or other laboratory clamp jaw holds the burette securely equipment. in place.

Wire gauze is a fine mesh wire sheet Use a lab scoop/spatula for easy that is used to evenly distribute heat dispensing of chemicals. Lab scoops from an open flame. It rests on a or spatulas are often double-sided. support ring attached to a ring stand One side may be used to scoop and and holds glassware above a burner. the other to break up chunks of powdered chemicals. Stainless steel resists contamination.

Glass tubing is usually inserted into Stoppers are used to seal narrow- stoppers to attach rubber tubing, mouth containers such as flasks and but it can also be used to splice two test tubes, and to hold pieces of glass pieces of rubber tubing. It can be tubing for distillation experiments, cut with a file or tubing cutter and or to mount thermometers inside a shaped with a flame. flask.

Desiccators are sealable containers A calorimeter measures the heat for low-humidity and dust-free transfer during a chemical reaction storage. The most common type or physical change. A reactant is is round, made of heavy glass, and placed inside the inner chamber has a removable platform inside. of the calorimeter. Measuring the Desiccant sits below the platform and temperature difference before and items to be stored sit atop it. after allows heat transfer evaluation.