... metallurgy, medicine, leather, wood preservative, textile, plating ,ferment and fertiliser.Ammonium Sulphate:Molecular formula: (NH4)2.SO4Molecular weight: 132.13Properties: colorless crystal ... , leather, wood preservative, textile, plating, ferment, and fertiliser.Specification:N: 20.5%minMoisture: 0.3%maxFree Acid (as H2SO4): 0.05%max Cryatal Ammonium Sulphate