Laboratory Equipment Vocabulary

Vocabulary flashcards covering laboratory glassware and equipment identified in the lecture slides.

Graduated Cylinder

A tall, narrow container with volume markings used to measure liquid volumes, labeled in the notes with markings HST Ex 20 500:55.

Volumetric Flask

A precision laboratory flask labeled PYREX No. 5580, calibrated at $20\,^\circ\text{C}$, with a volume capacity of $200\,\text{ml}$.

Florence Flask

A round-bottomed laboratory flask marked HSTÜ, Made in China, with a capacity of $1000\,\text{ml}$.

Wash bottle

A squeeze bottle used in the laboratory to rinse glassware and dispense liquids.

Beaker

A cylindrical container labeled BOMEX $250\,\text{ml}$ with approximate volume graduations.

Buret

A graduated glass tube used to dispense precise volumes of liquid, shown with a capacity of $25\,\text{ml}$.

Transfer (Volumetric) Pipet

A pipet designed to deliver a single specific volume of liquid, labeled with 100.

Thermometer

A temperature measuring instrument displaying scale graduations including 35, 37, 40, and 42.

Mohr Pipet

A graduated pipet designed to dispense variable volumes, marked with 25.1/10.

Rubber policeman / glass stirring rod

A glass rod used for stirring liquids, fitted with a rubber policeman blade at the end for scraping precipitates.

Erlenmeyer Flask

A conical flask labeled VEE GEE GLASSCO $500\,\text{mL}$, $\pm 5\%$, Stopper No. 7, No. 20231.

Filter flask (sidearm flask)

A heavy-walled Erlenmeyer flask with a side tube, labeled BOMEX $1000\,\text{ml}$ APPROX.

Litmus Paper

pH indicator paper made in U.S.A., shown in RED LITMUS PAPER, NEUTRAL LITMUS PAPER, and BLUE LITMUS PAPER varieties.

Test tube

A slender glass tube closed at one end, used to hold small amounts of material for laboratory testing.

Test tube holder

A gripping tool used to hold a test tube safely.

Liquids Funnel

A funnel with a narrow stem designed for transferring liquids into narrow-mouthed containers.

Solids (powder) Funnel

A funnel featuring a short, wide stem designed to transfer powders and solid reagents without clogging.

Buchner Funnel

A ceramic funnel used in combination with a filter flask for vacuum filtration.

Filter paper

GE Healthcare Life Sciences Whatman FILTER PAPERS 540, Hardened Ashless, $90\,\text{mm}$ diameter, CAT No.1540-090.

Ring Stand

A heavy metal base with an upright rod used to clamp and support laboratory apparatus.

Wire Gauze

A sheet of wire mesh used to support glassware on a ring stand and distribute heat from a burner.

Double Buret Clamp

A specialized dual clamp used to attach two burets to a single ring stand.

Iron Ring (of death)

A circular metal support ring that attaches to a ring stand, labeled in the notes as Iron Ring (of death).

Clay Triangle

A triangular wire frame with clay porcelain tubes used to support a crucible while heating.

Watch glass

A circular, slightly concave piece of glass used as a cover for beakers or for evaporating small liquid samples.

Evaporating Dish

A small porcelain bowl used to evaporate solvents from solutions.

Crucible tongs

Scissor-like metal tongs used to safely grip and lift crucibles and hot laboratory objects.

Beaker tongs

Tongs with curved jaws designed specifically for holding and moving beakers.

Utility Clamp

An adjustable clamp used to secure equipment like flasks or test tubes to a ring stand.

Bunsen burner / Rubber tubing

A gas burner connected by flexible rubber tubing used to heat substances in the laboratory.

Mortar / Pestle

A set of tools consisting of a heavy bowl (mortar) and grinding tool (pestle) used to crush and powder solids.

Well Plate

A flat tray containing multiple small reaction wells used for conducting qualitative microscale tests.