... :Name:ammonium sulphateAlias: ammonium sulfate, ammonium sulphate, sulfuric acid, diammonium salt, diammonium sulfate.Appearance:colorless rhombic crystals or ... ≥21.021.020.5Water content(H2O),% ≤0.20.31.0Free acid(H2SO4)content,% ≤0.030.050.20Fe content, % ≤0 ... of acid dyes,3>Deliming agent of leather,Beer making,Chemical agent Storage battery making, making compound fertilizerPictures: Anhydrous ...