Quality index ( hg/t2520-93 ) Premium grade(%)first grade(%) Assay(as h3po3 ) 99.098.0 Fe (as fe )0.00120.005 Chloride(as cl )0.010.01 Sulfate(as so4 )0.0060.006 Phosphate(as po4 )0.10.1 Appearancewhite crystal white crystal Aq. Solution test (70%)colorless transparent colorless transparent without any impurities .Packing: (1) 25kg in plastic woven bag; (2) 50kg in paper drum or metal pail; (3) 1000kg in big bag; (4) or upon your demand
