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Tetramethylammonium chloride is a major industrial chemical, being used widely as a chemical reagent [1] and also as a low-residue bactericide in such processes as hydrofracking. [2] In the laboratory, it has fewer synthetic chemical applications than quaternary ammonium salts containing longer N-alkyl substituents, which are used extensively ...
In the toxicological literature, naturally occurring tetramethylammonium (anion unspecified) is often referred to by the name "tetramine". Unfortunately, this non-systematic or "trivial" name is also used for other chemical entities, including a toxic rodenticide (Tetramethylenedisulfotetramine).
In the US, about 750 compounds have been listed as additives for hydraulic fracturing, also known as ingredients of pressurized fracking fluid, [9] in an industry report to the US Congress in 2011 [10] [11] The following is a partial list of the chemical constituents in additives that are used or may have been used in fracturing operations. [12]
One of the earliest preparations is that of Walker and Johnston, [4] who made it by the salt metathesis reaction of tetramethylammonium chloride and potassium hydroxide in dry methanol, in which TMAH is soluble, but potassium chloride is not: NMe 4 + Cl − + KOH → NMe 4 + OH − + KCl. Where Me stands for the methyl group, –CH 3.
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Tetraethylammonium chloride (TEAC) is a quaternary ammonium compound with the chemical formula [N(CH 2 CH 3) 4] + Cl −, sometimes written as [NEt 4]Cl.In appearance, it is a hygroscopic, colorless, crystalline solid.
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