... N 20.5%MIN WATER 1%MAX 2,Appearance:white or light grey granule/powder 3,Usage: for ... (NH4)2SO4Molecular weight : 132.14Properties : Colorless crystalline or white particlesStandard : GB535-1995usage Ammonium sulfate is mainly used as ... , medicine, etc.Specificationnitrogen 21%minmoisture 0.5%maxappearance : white crystal powderWhite powder or tiny crystalls, nodorousand salty, easily soluble ...