... is a by-product from chemical (cyanuric acid, capro, acrylonitrile, sodium cyanide, monosodium glutamate - MSG, methyl methacrylate - MMA, etc.) or ... more efficiency than urea, ammonium bicarbonate, ammonium chloride, ammonium nitrate. Large granular ammonium sulphate can also serve as raw material ... , avoid insolation, sign with no moisture and no insolation industrial ammonium sulphate20.6%N 21%N