Specifications: Index industrial grade Assay na5p3o10 % 94.0-96.0 P2o5 % 57.0 Water insoluble matter % 0.15 Iron(fe) % 0.015 Ph value(1% water solution) 9.2-10.0 Heavy metal (as pb) - Arsenic ú¿asú¬% - Fluoride (f) % - Chloride (c1) % - Sulphate(so4) % - Whiteness % 90 Ignition loss 1.0 Density (g/cm3) 0.35-0.9 Phase i 10-30 Particle size(1.00mm)% 95 25kg or 50kg/woven bag lined with pe liner, or 1000 kg/container bag; 20-24mt/20 feet container