Сульфат аммония

AMMONIUM SULPHATE CRYSTALLINE Specifications Result Appearance N 21%Min 21.15% H2O 0.3%Max 0.1% Free acid (As H2SO4) 0.03% Max 0.002% Content of Iron ( Fe) 0.007% max 0.0065% Content of Arsenic (As) 0.00005% max 0.0005% Content of Heavy Metal (Pb) 0.005% max 0.004% Content of Water insoluble substance 0.01% max 0.008% Useage : uased for chemical fertilizers and for production of complex fertilizers potassium sulphate , ammonium chloride and ammonium persulphate , ect. Also can be used for food processing , textile industry medical industry and leather processing . Technical specifications of ammonium sulphate ( national standard GB535-1995)