Search results
Results from the WOW.Com Content Network
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 ...
Additives are used for many purposes but the main uses are: Acids Food acids are added to make flavors "sharper", and also act as preservatives and antioxidants. Common food acids include vinegar, citric acid, tartaric acid, malic acid, folic acid, fumaric acid, and lactic acid. Acidity regulators
In the early pharmacological literature, however, there are references to the use of "tetramethylammonium hydroxide" or "tetramethylammonium hydrate", which were meant to facilitate comparison between weight-based dosages of different TMA salts, [18] but did not involve the actual use of tetramethylammonium hydroxide, whose strong basicity ...
Nonetheless, processed foods tend to have an inferior nutritional profile compared to whole, fresh foods, regarding content of both sugar and high GI starches, potassium/sodium, vitamins, fiber, and of intact, unoxidized (essential) fatty acids. In addition, processed foods often contain potentially harmful substances such as oxidized fats and ...
Methylations are commonly performed using electrophilic methyl sources such as iodomethane, [28] dimethyl sulfate, [29] [30] dimethyl carbonate, [31] or tetramethylammonium chloride. [32] Less common but more powerful (and more dangerous) methylating reagents include methyl triflate, [33] diazomethane, [34] and methyl fluorosulfonate (magic ...
The action of tetramethylammonium is most pronounced in autonomic ganglia, and so tetramethylammonium is traditionally classified as a ganglion-stimulant drug. [17] The ganglionic effects may have contributed to deaths following accidental industrial exposure. "Chemical burns" induced by this strong base are also severe. There is evidence that ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Trimethylamine (TMA) is an organic compound with the formula N(CH 3) 3.It is a trimethylated derivative of ammonia.TMA is widely used in industry. [5] [6] At higher concentrations it has an ammonia-like odor, and can cause necrosis of mucous membranes on contact. [7]