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
glass tubing
DESCRIPTION: hollow glass tube (bent or straight) made of borosilicate glass
USES: used to connect apparatus to allow flow of liquid, solid or gas
graduated cylinder
DESCRIPTION: cylindrical and tall with small diameters, they come in various sizes, ranging from measuring just 5 mL (milliliters) to 2 liters.
USES: for measuring volumes (amounts) of liquids.
hot plate
DESCRIPTION: flat surface with
heating elements. They do not
produce open flames and are well
suited for oil or sand bath use.
USES: to perform chemical reactions, to heat samples, and for numerous other activities.
iron clamp and holder
DESCRIPTION: placed in an iron stand to clamp an iron ring or other attachment to a metal bar.
USES: used to elevate other equipment
iron ring
DESCRIPTION: comprises a conjoined metal ring and radially-extending rod.
USES: supporting apparatus above
the work surface,
litmus paper
DESCRIPTION: a filter paper that has been treated with a lichen-provided natural- soluble dye.
USES: used to determine whether anything is acidic or basic.
melting point apparatus
DESCRIPTION: It typically consists of a heating mechanism, a sample holder, and a thermometer to measure the temperature of the sample.
USES: They are often used to determine the temperature of the melting point of a substance.
mettler balance
DESCRIPTION: One of the most commonly used laboratory equipment for weighing.
USES: used to determine the mass of small samples with a high degree of accuracy and precision.
pycnometer
DESCRIPTION: The pycnometer is a glass flask with a close-fitting ground glass stopper with a capillary hole through it.
USES: Pycnometers are used for measuring and comparing densities or specific gravities of liquids and solids, including soil.
reflux condenser
DESCRIPTION: A reflux condenser, also called a vent condenser or knockback condenser, is a vertical tube-side condenser in which the vapor flows upward.
USES: used to cool the vapors that heated fluids emit and change their physical state back to liquid by means of a straight, spiraled or coiled circulation cooling method
round bottom flask
DESCRIPTION: Round-bottom flasks (also called round- bottomed flasks or Florence flasks) are types of flasks having spherical bottoms used in laboratory. They are made of heat-resistant borosilicate glass.
USES: Round- bottom flasks are often used to contain chemical reactions run by chemists, especially for reflux set-ups and laboratory- scale synthesis.
separatory funnels
DESCRIPTION: conical in shape with a hemispherical end
USES: Separatory funnels are commonly used in liquid-liquid extractions. They can also be used as dropping funnels, most often for open flasks and beakers.
steam bath
DESCRIPTION: A round, flat-bottomed, stainless steel container that is filled with water to be heated.
USES: Used to securely hold and heat flask or beakers containing volatile or flammable substances.
thermometer
DESCRIPTION: It is a long narrow glass tube with a bulb containing mercury at the end.
USES: A laboratory thermometer is used to measure the boiling point and freezing point during science experiments.
tripod
DESCRIPTION: A laboratory tripod is a three- legged platform used to support flasks and beakers.
USES: The main usage is to support or hold the flasks and beakers during experiments.
watch glass
DESCRIPTION: A watch glass is a round, concave glass dishused for evaporation in chemistry. It can also be employed for weighing solids and as a lid for flasks and beakers.
USES: used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance, and as a cover for a beaker.
water bath
DESCRIPTION: It is a stainless steel equipment containing a heating element inside the tank.
USES: A water bath is a laboratory equipment that is used to incubate samples at a constant temperature over a long period of time.
