Ammonium thiosulphate

NH4)2S03 sublimes unaltered [946] but the monohydrate undergoes partial decomposition to H20, NH3 and (NH4)2S207. Decomposition of ammonium thiosulphate is inhibited by the addition of other ammonium salts, e.g. (NH4)2C03, and by briquetting [947]. 

Ammonium thiosulphate reacts in a very dangerous way with hydrogen peroxide. 

Sodium ammonium hydrogenphosphate Ammonium hydrogensulphride Anunonium sdlphamate Hydrazine sulphate Ammonium phosphate Diammonium sulphite Ammonium thiosulphate Ammonium molybdate Amnwnium sulphate Diammonium peroxodlsutphate... 

The impurities in commercial carbonate may include ammonium thiosulphate derived from the. ammonium sulphate or ammonium chloride containing some sulphate ammonium sulphate or chloride, derived from the same sources lead, derived from leaden receivers and lime, calcium chloride, or other non-volatile substances may be present, and these remain as a permanent residue where the salt is volatilized. 

The observation that in the electrolysis of ammonium thiosulphate solution tetrathionic acid is formed at the anode also belongs to this class, because the process is not one of the coupling of discharged anions, but an anodic oxidation of the thiosulphate.11... 

Nitrogen sulphide is only sparingly soluble in alcohol,2 ether, wood spirit and turpentine it is hydrolysed by water or moist air with formation of ammonium thiosulphate, ammonium trithionate and ammonia ... 

The sulphide, dissolved in benzene or alcohol, reacts with hydrogen sulphide forming ammonium polysulphide or ammonium thiosulphate, respectively.2... 

Ammonium thiosulphate, (NH4)2S203.—A hydrate of the formula 8(NH4)2S203,H20 is produced by the interaction of ammonium carbonate and calcium thiosulphate in aqueous solution, and on concentration is deposited in the form of deliquescent needles or rhombic laminae.4 The anhydrous salt is formed by the action of sulphur dioxide on a solution of the sulphide,5 and is a by-product in the reduction of p-dinitro-benzene to p-nitroaniline by means of ammonium sulphide.6 It is also formed by the action of ammonium sulphate on ammonium polysulphides,7 and by that of ammonia on sulphur trioxide7 or sulphur.8 The monoclinic9 crystals decompose almost completely at 150° C., with production of ammonium sulphite, sulphur, ammonia, and hydrogen sulphide.10 It is employed in iodometry. 

Ammonium trithionate, (NH4)2S306.—An aqueous solution of potassium trithionate reacts with hydrofluosilicic acid and ammonia to form the trithionate, which is precipitated from its aqueous solution by alcohol as a very deliquescent, unstable salt.15 It is also formed, along with the tetrathionate, by the action of sulphur dioxide on ammonium thiosulphate 16... 

Ammonium thiosulphate reacts with it, forming ammonium sulphate and liberating sulphur ... 

Ammonium Thiosulphate (NH4)2S203, prepared by double decompositior thus— 2NHCl + NaoS203 = (,NH4)2S,Os+ 2NaCl. Used in photography. 

Ammonium hydrogen phosphate solution 196 Ammonium thiosulphate 205... 

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