Ammonium Thiosulphate Crystal SKU: SKU RXSOL-19-3704-050 Product Category: Category Solvent Chemicals-19 Variations Ammonium Thiosulphate Crystal Short Description Short Description Ammonium thiosulfate is a white, crystalline solid with the chemical formula (NH4)2S2O3. It has a characteristic ammonia odor and is highly soluble in water, but slightly soluble in acetone and insoluble in ethanol and diethyl ether