Laboratory Equipments

• Your lab equipment should be clean before using it
• Your lab equipment should be checked for cracks, broken edges, and stars , discard if damaged
• Your lab equipment should be washed, dried and carefully stored in the proper place when done using it
• Beakers hold solids or liquids that will not release gases when reacted with other substances.
• Beakers is very poor to measure volume with (+/-5%) accuracy
• Erlenmeyer flask holds solids or liquids that may release gases during a reaction or are likely to splatter if stirred or heated
• Florence flask it is used for mixing chemicals, narrow neck prevents splash exposure
• Graduated cylinder is used to measure volume of liquids
• Test tubes are used to mix chemicals and to heat chemicals
• Test tube holder is used to hold test tubes which are too hot to handle
• Test tube brush are used to clean test tubes and graduated cylinders, forcing a large brush into a small tube will break the tube
• Test tube racks are used for holding and organizing test tubes on the laboratory counter, and are found in the wall cabinets
• Rubber stoppers or corks are used to close containers to avoid spillage or contamination
• Containers should not be heated when there is a stopper in place
• Well plates are used when we want to perform many scale reactions at one time
• Watch glass is used to hold a small amount of solid, such as a product of reaction. It can also be used as a cover for and evaporating dish or beaker
• Stirring rod is used to manually stir the solution, assist in pouring liquids, and transfer a single drop of solution
• Rubber policeman tip is used to remove precipitates
• Dropper pipet is used to transfer a small amount of liquid, usually one drop at a time
• On top of each rubber pipet is a rubber bulb
• litmus paper is used to identify bases and acids, red litmus paper for bases and blue litmus paper for acids
• Forceps are used to hold and pick up small objects
• Funnel is used to aid in the transfer of liquids from one vessel to another, and will hold filter paper while filtering
• Graduated pipet a graduated pipet measures and delivers exact volume of liquids, uses a rubber bulb for suction
• Electronic balance are very accurate and highly dependable and rugged that is used to measure the mass of an object
• Spatula are used to dispense solid chemicals from their containers
• Beaker tongs are used to move beakers containing hot liquids
• Burners are used for heating nonvolatile liquids and solids
• Hot plates are used to gently heat any flammable chemicals
• Evaporating dish is used for heating stable solid compounds and elements, as well as for evaporating nonvolatile solutions
• Crucibles are used for heating certain solids, particularly metals to very high Temperature, the cover can be used to contain any smoke particles
• Clay triangle is used to support crucibles when being heated over a lab burner, or it can be used to support a funnel when filtering
• Crucible tongs are used for handling hot crucibles and other hot objects
• Ringstands are a safe and convenient way to perform reactions that requires heating using a lab burner
• Ringstands can also be used as an insulating pad to place hot objects while they cool
• Ring clamps connects to the ringstand, and provide a stable elevated platform for a beaker to be heated
• Test tube clamps are used to secure test tubes, distillation columns and burets to the ringstands
• Double buret clamps are used to secure burets to the ringstand
• Burets are long graduated tubes used in titration to measure the volume of acid or alkali added to a solution
• Wire gauze sits on the iron ring to provide a place stand a beaker