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Home , Clamp holder, Condenser (laboratory), Crucible, Crucible tongs, Evaporating dish, Florence flask

GLASSWARE AND APPARATUS

Beaker A general purpose container for holding or mixing with a are used for adding to pouring spout. Some beakers have narrow mouth containers, or, with fil- graduations on them indicating ter , for filtering solutions approximate volume of contents.

Erlenmeyer flask Funnel, powder A general purpose container used A funnel with a short, wide stem for for holding or mixing liquids. Some use in pouring powders into narrow flasks have graduations on them to mouth containers. indicate approximate volume of contents. A measuring device, graduated to Sometimes referred to as a boiling flask. contain liquids or solutions. Tall A general purpose container used for cylinders should be equipped with a holding or boiling liquids. bumper to absorb impact if the cylinder is tipped over.

Filtering flask Dropping pipet A heavy wall flask designed for A medicine dropper used to deliver use in suction (vacuum) liquids in dropwise amounts. of solutions. Has side hose connection to attach vacuum tubing. Pasteur pipet A capillary tip dropper used to deliver small drops. These are usually disposable.

Rubber bulb Fits Pasteur, and other dropping pipets. A flask used for preparation of These are reusable. solutions. Volumetric flasks are calibrated to contain a specific volume Watch of liquid or solution. A glass dish that can be used for evaporation of small amounts of liquids, for studying small amounts of solids, or as covers for beakers.

Test tube A round-bottom used A dish used for heating and to contain or heat small amounts of evaporating samples. Usually made of materials. porcelain or glass.

Crucible and cover tube A cup, with cover, used for heating A with a tapered samples to high temperatures. Usually bottom for use in laboratory made of porcelain, glass, or . . Solid materials will collect in the bottom taper during Gooch use. A crucible with a perforated bottom used for filtering and drying precipitates.

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Casserole Büchner funnel A crucible with a handle for A funnel, usually made of controlled hand-held heating of porcelain, for use in suction filtration of samples. liquids and mixtures.

Wash , plastic A squeeze bottle used to produce a steady stream or a few Used to separate immiscible liquids drops of liquid for rinsing or solutions. Contents can be emptied materials from test tubes, beakers into small flasks or beakers. or flasks.

Bottle, reagent A narrow mouth bottle for A long stem funnel-type device used holding laboratory reagents. May when liquids or solutions are added to have a glass or . a reaction in a closed flask.

Thermometer Bottle, gas collecting Either mercury or alcohol filled, used A wide mouth bottle commonly used to measure temperature in laboratory for collecting gases by water operations. displacement. Liebig An in-line cooling device used for or operations. Buret Outer jacket allows water flow for A graduated measuring device for efficient cooling. delivering precise volumes of liquids or solutions. Used as an oil bath for determinations. The side arm allows for circulation of hot oil contained in Volumetric (Transfer) pipet tube. A measuring device calibrated to deliver a specific amount of liquid or solution. A container used to store materials in a dry, air tight environment. Desiccant is placed on the bottom Mohr (graduated) pipet to absorb moisture assuring a A measuring device calibrated to deliver moisture-free environment. Some small quantities of liquid up to the can be vacuum sealed. capacity of the pipet.

Bunsen Burner A gas burner used for general Mortar and pestle Used for crushing and grinding heating in the laboratory. samples. Usually made of porcelain or glass.

38 Tirrill Burner A variation of a that A clamp specially designed to contains a needle valve for gas flow hold a thermometer. regulation. (Often referred to as a Bunsen burner.) Double buret holder A double clamp for holding two Meeker burner burets. A wide top burner that produces a hotter, larger area flame than a Bunsen burner. Funnel rack Used to hold several funnels for filtering operations.

Wing top (flame spreader) (ceramic center) A device that fits on a Bunsen burner A support surface to be used with a to produce a wide, narrow flame suitable ring support or to provide for heating a glass tube for glass bending. uniform heat distribution to a flask or beaker.

Ring stand support Clay triangle Consists of a heavy base with a metal Iron wire covered with pipe clay. rod for supporting apparatus for a variety Used with a ring support for supporting of laboratory operations. during heating. Also used, with a ring support, for supporting a funnel when filtering.

Utility clamp Rubber Adjustable clamp for holding a test tube, A rubber tip with a flattened end used on a flask, buret, or other apparatus. for scraping solids from containers.

Extension clamp Water bath Used with a , allows A metal bowl with a top of concentric more variation in positioning than a rings so that different sized glassware can be . fit into the bath.

3-prong clamp Beaker tongs Used with a clamp holder, allows for Wide-jaw tongs for holding beakers. more versatility in holding different types of apparatus

Tongs with oval opening in jaws for Extension clamp holder holding crucibles. Tips used for handling Used to attach an extension clamp to a ring crucible covers. stand support or support frame. Dish tongs Support ring Jaws are made to encircle an evaporating Designed as a base support for dish with fingers to grip the top flange. beakers or flasks when heated on a ring stand support. Flask tongs V-shaped jaws are used to hold neck of flask. and For handling small amounts of solid chemicals.

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Test tube holder Spring-type clamp for holding Spot plate a test tube. Made of porcelain or glass. Used for small scale chemical reactions and tests. For handling or manipulating small samples or materials. (culture dish) Used for containing small samples Pinchcock clamp or chemical reactions. A clamp used to pinch rub ber tubing closed to stop fluid Well plate flow. May contain 12, 24, 48, or 96 wells. Used for microscale chemical tests Screw clamp (Hofmann clamp) and reactions. An adjustable clamp used to regulate or stop fluid flow through Water aspirator rubber tubing. A filter pump that fits on a faucet which is used to produce suction for filtering. Triangular A metal file used for scratching glass when cutting it into smaller pieces. Pneumatic trough A device used for collecting gases by water displacement. Used for holding test tubes upright. May be made from wood, plastic or metal. Some contain pegs for drying test tubes.

Test tube brush A narrow brush with tufted end for cleaning test tubes

Beaker brush A large sized brush for cleaning beakers or .

Pipet safety bulbs Several styles shown. Used to provide suction for filling pipets. Some bulbs have valves to allow liquid flow from pipets.

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