apparatus Flashcards
air condenser
DESCRIPTION: glass cylinder with a central tube that is surrounded by a jacket through which air or water is circulated to transfer heat away from the central tube.
USES: used to condense vapors that is, turn them into liquids by cooling them
down.
beaker
DESCRIPTION: cylindrical container with a flat bottom.
USES: used for holding liquids, measuring liquids, heating them over a Bunsen burner’s flame or collecting them in a titration experiment.
capillary tube
DESCRIPTION: a cylindrical tube with a constant diameter that can be filled up with any gas, liquid, or solid particles.
USES: It is used for collecting the different samples of liquid, for checking concentrations, molarity, molality, etc. can be used in refrigeration to control the flow of refrigerants.
boiling chips
DESCRIPTION: small pieces of black porous rock (often silicon carbide) that are added to a solvent or solution.
USES: ensure even boiling and prevent bumping and boiling over and loss of the solution.
bunsen burner
DESCRIPTION: is a kind of ambient air gas burner used as laboratory equipment; it produces a single open gas flame
USES: for heating, sterilization, and combustion.
cork
DESCRIPTION: is a cylindrical stopper made from the bark of cork oak trees.
USES: as a stopper inserted at the opening of a container not only to prevent spills, but also to trap unpleasant and strong chemical odors.
cork borer
DESCRIPTION: it is a metal tool that is available in a nested size set including a solid pin, used to push the removed cork or rubber out of the borer.
USES: for cutting a hole in a rubber or cork stopper to insert the glass tubing.
cotton wadding
DESCRIPTION: typically appears as a loose, cloud-like mass of fibers.It’s usually white in color, although it can sometimes be found in off-white or natural shades.
USES:
used for cleaning laboratory equipment, glassware, and work surfaces.
cylinder
DESCRIPTION: narrow and tall so as to increase the accuracy and precision of volume measurement. It has a plastic or glass base (stand, foot, support) and a “spout” for easy pouring of the measured liquid.
USES: used to accurately measure the volume of liquids.
dessicator
DESCRIPTION: sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use
USES: to protect chemicals which are hygroscopic or which react with water from humidity.
distilling flask
DESCRIPTION: round-bottomed for uniform heat distribution, with a stoppered or jointed neck of variable length
USES: used to separate mixtures of two liquids with different boiling points
dropper
DESCRIPTION: long plastic or glass tube with an opening at the end and a rubber bulb at the top.
USES: used to transfer tiny amounts of liquid.
erlenmeyer flask
DESCRIPTION: wide flat bottoms, conical bodies, and tall cylindrical necks.
USES: used to contain liquids and for mixing, heating, cooling, incubation, filtration, storage, and other liquid- handling processes.
filter paper
DESCRIPTION: semi-permeable paper barrier placed perpendicular to a liquid or air flow.
USES: used for separating solid from liquid. The raw materials are typically different paper pulps.
funnel
DESCRIPTION: made of glass, or plastic, and come in a variety of shapes and sizes depending on their application.
USES: for funneling liquids or powders into containers with narrow openings
