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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 ...
A Büchner funnel is a piece of laboratory equipment used in filtration. [1] It is traditionally made of porcelain , but glass and plastic funnels are also available. On top of the funnel-shaped part there is a cylinder with a fritted glass disc/perforated plate separating it from the funnel.
Another earlier process to produce chlorine was to heat brine with acid and manganese dioxide. 2 NaCl + 2H 2 SO 4 + MnO 2 → Na 2 SO 4 + MnSO 4 + 2 H 2 O + Cl 2. Using this process, chemist Carl Wilhelm Scheele was the first to isolate chlorine in a laboratory. The manganese can be recovered by the Weldon process. [11]
[citation needed] It is a far cheaper source than a pressurized or cryogenic oxygen tank. Potassium chlorate readily decomposes if heated while in contact with a catalyst, typically manganese(IV) dioxide (MnO 2). Thus, it may be simply placed in a test tube and heated over a burner.
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...
The enclosure is gas-tight, and all materials enter and leave through a dunk tank or double-door autoclave. Gloves attached to the front prevent direct contact with hazardous materials (Class III cabinets are sometimes called glove boxes). These custom-built cabinets often attach into a line, and the lab equipment installed inside is usually ...
A test tube holder is used to hold test tubes. [1] 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]
Checking chlorine level of the local water source in La Paz, Honduras. Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water . This method is used to kill bacteria, viruses and other microbes in water.