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Coarse bubble diffusers produce 1/4 to 1/2 inch (6.4 to 13 mm) bubbles which rise rapidly from the floor of a wastewater treatment plant or sewage treatment plant tank. They are typically used in grit chambers, equalization basins, chlorine contact tanks, and aerobic digesters , and sometimes also in aeration tanks.
The solution travels to a tank that separates the hydrogen gas based on its low density. [1] Only water and sodium chloride are used. The simplified chemical reaction is: NaCl + H 2 O + energy → NaOCl + H 2 [citation needed] That is, energy is added to sodium chloride (table salt) in water, producing sodium hypochlorite and hydrogen gas.
Pages in category "Laboratory equipment" The following 200 pages are in this category, out of approximately 258 total. This list may not reflect recent changes .
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]
Aspirator - Beaker - Boiling tube - Büchner funnel - Bunsen burner - Burette - Calorimeter - Colorimeter - Conical measure - Nuclear Magnetic Resonance - Mass Spectrometer - Liquid Chromatography - Gas Chromatography - Crucible - Cuvette - Laboratory flasks (Büchner, Erlenmeyer, Florence, Retort, Round-bottom, Volumetric) - Fume hood - Gas syringe - Graduated cylinder - Perkin triangle ...
Cannula transfer using gas pressure. Mercury bubblers are largely similar in construction to oil bubblers. They usually have a longer body to prevent mercury from splashing out through the bubbler outlet, and the inlet connection usually has a sintered glass disc to prevent mercury from being sucked back into the inert gas system when refilling an evacuated vessel.
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 ...
The chlorine and sodium hydroxide produced in this process are widely used in the chemical industry. Usually the process is conducted on a brine (an aqueous solution of concentrated NaCl), in which case sodium hydroxide (NaOH), hydrogen, and chlorine result.