GB1063995A - Process for the manufacture of organic mercury compounds and products obtained thereby - Google Patents

Abstract

The invention comprises compounds of the formula R2Hg2NH2X and their preparation, where R is unsubstituted or substituted benzene or naphthyl, X represents the residue of an inorganic or organic compound having an active acidic hydrogen atom, X being, e.g. the acid or acyl group of a monobasic or polybasic inorganic acid, or an acyloxy group of a saturated or unsaturated monobasic or polybasic aliphatic acid, or of an aromatic, cycloaliphatic or heterocyclic carboxylic or sulphonic acid, possibly substituted compounds having reactive methylene groups, e.g. barbituric acid, thiols and enols. X may also be a polybasic acid radical partially neutralized by, e.g. NH4 or Na. The compounds of the invention are prepared using anhydrous conditions by one or more of the following methods (1) by reacting RHgOH with dry NH3 gas in a solvent which will dissolve the formed R2Hg2NH2OH, and then reacting this with an acid or salt, to form R2Hg2NH2X, (2) by reacting RHgX in an organic liquid with dry ammonia gas at about 10-100 DEG C., (3) by reacting a mixture of a compound having an acidic hydrogen atom or its salt and RHgOH in an organic liquid with dry ammonia gas.ALSO:Slimicides comprise compounds with the formula R2 Hg2 NH2X where R is unsubstituted or substituted phenyl or naphthyl, X represents the residue of an inorganic or organic compound having an active acidic hydrogen atom, X being e.g. the acid or acyl group of a monobasic or polybasic inorganic acid, or an acyloxy group of a saturated or unsaturated monobasic or polybasic aliphatic acid, or of an aromatic, cycloaliphatic or heterocyclic carboxylic or sulphonic acid, possibly substituted compounds having reactive methylene groups e.g. barbituric acid, thiols and enols. X may also be a polybasic acid radical partially neutralized by e.g. NH4 or Na. For use as slimicides and fungicides, the compounds may be diluted with talc, clay or synthetic silicates. For use as slimicides, fungicides and mildew proofing for fabrics, solutions may be used containing the compounds together with ammonium acetate, propionate, sulphate, free ammonia, primary or tertiary amines, alkanolamines, alcohols and glycols. Special compositions for use as slimicides in the paper industry are:- Example B: Diphenyl dimercuric ammonium propionate and "HY - FLO" (Trade Mark). Example K: Methanol, ammonium acetate, diphenyl dimercuric ammonium propionate, water, morpholine Example L: Ethylene glycol, ammonium acetate, diphenyl dimercuric ammonium propionate, morpholine and water.ALSO:Herbicides, fungicides, fungistats, slimicides, mildew proofer for fabrics comprise the compound R2 Hg2NH2X where R is unsubstituted or substituted benzene or naphthyl, X represents the residue of an inorganic or organic compound having an active acidic hydrogen atom, X being e.g. the acid or acyl group of a monobasic or polybasic inorganic acid, or an acyloxy group of a saturated or unsaturated monobasic or polybasic aliphatic acid, or of an aromatic, cycloaliphatic or heterocyclic carboxylic or sulphonic acid, possibly substituted. X may also be a polybasic acid radical partially neutralized by e.g. NH4 or Na. For use as slimicides and fungicides, the compounds may be diluted with talc, clay or synthetic silicates. For use as slimicides, fungicides and mildew proofing for fabrics, solutions may be used containing the compounds together with ammonium acetate, propionate, sulphate, free ammonia, primary or tertiary amines, alkanolamines, alcohols and glycols. Special compositions for use as slimicides in the paper industry are: Example B: Diphenyl dimercuric ammonium propionate and "HY-FLO" (Trade Mark). Example K: Methanol, ammonium acetate, diphenyl dimercuric ammonium propionate, water, morpholine Example L: Ethylene glycol, ammonium acetate, diphenyl dimercuric ammonium propionate, morpholine and water.