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Since crucible tongs work with the crucible, one must know the safety procedures of the crucible. Before using the crucible, make sure that it is dry; Fill the crucible with sample chemicals to only 1/2 or 2/3, do not fill until it is full; If the user used the crucible to fuse the glass, waiting for the crucible to cool down before cleaning it
It is used for holding a test tube in place [2] when the tube is hot or should not be touched. [3] For example, a test tube holder can be used to hold a test tube while it is being heated. [ 4 ] Moreover, when heating the tube with liquid or solid contained inside, the holder ought to tightly hold a test tube [ 5 ] in order for the tube to be ...
General laboratory stands, racks, filter paper, reagents, etc. Induction coils: as a source of high voltage electricity Cathode ray oscilloscope ' Recording kymograph: historically, used in human or animal experiments to measure and record data Long extension kymograph: historically, used in or human animal experiments to measure and record data
Tongs consist a single band of bent metal, as in sugar tongs, most asparagus tongs (which are no longer common) [2] and the like. Sugar tongs are usually silver, with claw-shaped or spoon-shaped ends for serving lump sugar. Asparagus tongs are usually similar but larger, with a band near the head that limits how far the tongs can expand.
Laboratory automation; Laboratory centrifuge; Laboratory drying rack; Laboratory informatics; Laboratory oven; Laboratory rubber stopper; Laboratory sample tube; Laboratory scissor jack; Laboratory water bath; Laminar flow cabinet; Langmuir–Blodgett trough; Large diameter centrifuge; Lattice light-sheet microscopy; Liebig condenser; Light ...
Chemistry tubes are available in a multitude of lengths and widths, typically from 10 to 20 mm wide and 50 to 200 mm long. [1] The top often features a flared lip to aid pouring out the contents. A chemistry test tube typically has a flat bottom, a round bottom, or a conical bottom.
An Erlenmeyer flask, also known as a conical flask (British English) [1] or a titration flask, is a type of laboratory flask with a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist Emil Erlenmeyer (1825–1909), who invented it in 1860. [2] Erlenmeyer flasks have wide bases and narrow necks. [3]
A test tube brush or spout brush is a brush used for cleaning test tubes and narrow mouth laboratory glassware, [1] such as graduated cylinders, burettes, and Erlenmeyer flasks. It is composed of nylon , synthetic, or animal fur bristles of various diameters lined against a rather sturdy wire handle with a looped end for hanging.