Product name:21% polymer ferric sulphate with low price in china Cas no. : 10028-22-5 Einecs no.: 233-072-9 Mf:[fe2(oh)n(so4)3-n/2]m Hs code: 3824909990 Property: it is a inorganic polymer flocculant with superior performance, it appearance is a light yellow amorphous solid powder. Application: widely used for purification in drinking water, industrial water , industrial wastewater, urban sewage, sludge dewatering, etc. Package: plastic woven bag with pe liner. N.W. 25kg.