Chemistry Laboratory Glassware and Equipment PDF

# Glassware and equipment in chemistry laboratory ## Practical General Chemistry y ### First Stage, First Semester, 2024-2025 ## Test tube - Also known as a sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing. - Used to mix che...

# Glassware and equipment in chemistry laboratory ## Practical General Chemistry y ### First Stage, First Semester, 2024-2025 ## Test tube - Also known as a sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing. - Used to mix chemicals, hold liquids, heat liquids, and collect or store bodily fluids, like blood and semen. ## Beakers - Beakers can be used to hold liquid or solid samples or as a container for reactions. - They are available in a variety of sizes. - The markings are not necessarily accurate. ## Erlenmeyer flask/ flasks - Used for a variety of laboratory liquid handling applications such as heating, mixing, storage and Titrations. - As with beakers, the volume markings should not be considered accurate. ## Volumetric - Volumetric flasks are used to measure and store solutions with a high degree of accuracy. - These flasks generally possess a marking near the top that indicates the level at which the volume of the liquid is equal to the volume written on the outside of the flask. ## Graduated cylinder - Graduated cylinders are used to transfer liquids with a moderate degree of accuracy. ## Pipette - Pipettes are used for transferring liquids with a fixed volume and quantity of liquid must be known to a high degree of accuracy. ## Test tube holder - A test tube holder is used to hold test tubes. - It is used for holding a test tube in place when the tube is hot or should not be touched. ## Test tube stand - Test tube racks are laboratory equipment used to hold upright multiple test tubes at the same time. ## Bunsen burner - A small adjustable gas burner used in laboratories as a source of heat. ## Petri dish - Petri dish is a shallow cylindrical, round glass that is used in laboratories to culture different microorganisms and cells. ## Tripod for Bunsen burner - A laboratory tripod is a three-legged platform used to support flasks and beakers. ## Wash Bottle - A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks. ## Burette - A burette is a volumetric measuring glassware which is used in analytical chemistry for the accurate dispensing of a liquid, especially of one of the reagents in a titration. ## Burette clamp - Burette clamp is scientific equipment which used specifically to hold and secure a burette on a stand, so that a burette is fixed and more convenient for the experiment. ## Graduated Dropper - A dropper or Pasteur pipette is an instrument used to transfer small quantities of liquid. ## Tongs - Tongs are a type of tool used to grip and lift objects instead of holding them directly with hands. ## Spatula - In laboratories, spatulas and micro spatulas are small stainless steel utensils, used for scraping, transferring, or applying powders and paste like chemicals or treatments. - Round-bottom flasks are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biological experiments. ## Wire Mesh Gauze (Ceramic Centre) - Wire mesh (wire gauze) is used for uniform distribution of flame heat in base of a heated body. - It is made of iron wire strands with or without ceramic interior cores. ## Glass rod - A glass stirring rod is a piece of laboratory equipment used to mix chemicals and liquids for laboratory purposes. - They are usually made of solid glass, about the thickness and slightly longer than ... ends. ## Funnel - A tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. ## Buchner Funnel - A Büchner funnel is a piece of laboratory equipment used in filtration. - It is traditionally made of porcelain, but glass and plastic funnels are also available. ## Clamp - It is used to hold round laboratory glassware, such as a beaker, and flasks, etc. This type of clamp is made from stainless steel. ## Test tube brush - Test tube brush or spout brush is a brush used for cleaning test tubes and narrow mouth laboratory glassware, such as graduated cylinders, burettes, and Erlenmeyer flasks. ## Filter paper funnel - Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. - It is used in science labs to remove solids from liquids. ## Separatory - A separating funnel is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities. ## Sample containers - Sample containers are very useful for storing chemicals solid samples, and transporting. ## Reagent bottle - Reagent bottles are containers made of glass, plastic, borosilicate, and topped by special caps and are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves. ## Watch glass - A watch glass is a circular concave piece of glass 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. ## Mortar and pestle - Mortar and pestle are implements used since ancient times to prepare ingredients or substances by crushing and grinding them into a fine paste or powder in the laboratory. ## Desiccator Condenser - Desiccants used for preserving moisture-sensitive chemicals. - A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity. ## Glass - A condenser is an apparatus or item of equipment used to condense (change the physical state of a substance from its gaseous to its liquid state). ## Crucible - A crucible is a ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures. ## Mechanical Shaker - It is a piece of laboratory equipment used to mix, blend, or agitate substances in a bottle or flask by shaking them. ## Digital Balance Stirrer - The digital mass balances in the General Chemistry labs are very sensitive instruments used for weighing substances to the milligram (0.001 g) level. ## Magnetic - A magnetic stirrer is a device widely used in laboratories and consists of a rotating magnet or a stationary electromagnet that creates a rotating magnetic field. ## Water bath - A water bath is laboratory equipment made from a container filled with heated water. It is used to incubate samples in water at a constant temperature over a long period of time. ## pH meter - A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. ## Colorimeter - A colorimeter is a light-sensitive device used for measuring the transmittance and absorbance of light passing through a liquid sample. - The device measures the intensity or concentration of the color that develops upon introducing a specific reagent into a solution.