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It is a very hygroscopic colourless solid that is soluble in water and polar organic solvents. Tetramethylammonium chloride is a major industrial chemical, being used in such processes as hydrofracking.In the laboratory, it has fewer synthetic chemical applications than quaternary ammonium salts containing longer N-alkyl substituents, which are used extensively as phase-transfer catalysts.t is a very hygroscopic colourless solid that is soluble in water and polar organic solvents. Tetramethylammonium chloride is a major industrial chemical, being used in such processes as hydrofracking.
Abstract. In the present study, the antifungal effects of phenylmercuric nitrate and benzalkonium chloride versus those of natamycin and ketoconazole were assessed against 216 filamentous fungi isolates from cases of fungal keratitis.he activity of benzalkonium chloride against other filamentous fungi is poor basis of our study. Phenylmercuric nitrate is one of the main preservatives used worldwide in topical ophthalmic preparations in concentrations ranging from 0.001% to 0.002%.