Pls check the spec. As follows :
Aluminium sulphate
Appearance : white lumps/granules/ powder
Al2o3: 15.8% min
Fe: 0.45% max
Ph value: 3.0 min
Water-insoluble matter: 0.15% max
As: 0.0005% max
Pb: 0.002% max
Grain size:15mm
Any enquiry pls contact dara at rhwlchem.Com
25/50kg/bag, 25mt/20f+fcl