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Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH 3) 4 N + Cl − is often abbreviated further as Me 4 N + Cl −. It is a hygroscopic colourless solid that is soluble in water and polar organic solvents.
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).
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Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N(CH 3) 4 + OH −. It is commonly encountered in form of concentrated solutions in water or methanol. TMAH in solid state and its aqueous solutions are all colorless, but may be yellowish if impure.
Pages in category "Tetramethylammonium salts" The following 7 pages are in this category, out of 7 total. ... Tetramethylammonium chloride; Tetramethylammonium fluoride;
A known salt is potassium hexanitratoaluminate K 3 [Al(NO 3) 6]. Tetramethylammonium hexanitratoaluminate can be formed from tetramethylammonium chloride, aluminium chloride and dinitrogen tetroxide diluted with nitromethane. [4] Rubidium hexanitratoaluminate also exists. [5]
It is prepared from tetraethylammonium bromide by salt metathesis, using a hydroxide-loaded ion exchange column or by the action of silver oxide. [3] Attempted isolation of Et 4 NOH induces Hofmann elimination, leading to triethylamine and ethylene. Treatment of Et 4 NOH with a wide range of acids gives water and the other tetraethylammonium salts:
For example, the synthesis of tetraethylammonium perchlorate, a salt that has been useful as a supporting electrolyte for polarographic studies in non-aqueous solvents, is carried out by mixing the water-soluble salts tetraethylammonium bromide and sodium perchlorate in water, from which the water-insoluble tetraethylammonium perchlorate ...
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