Features: 1) P2O5:≥402) K2O:≥533) F, ppm:≤254) Chloride(as Cl ) ,%:≤1.0 5) Sulfate (as SO4 ),ppm:≤1006) Fe,ppm:≤507) As,ppm:≤508) Heavy metals (as Pb ), ppm:≤209) Water insolubility, %:≤0.210) PH(1%,solution): 8.7 - 9.3Usage: Used as softener for boilers, P+K adjuster for fermentation, liquid-fertilizer, and anticorrodant in glycol antifreezer.Package, transportation and storage: 1) 25kg/bag (polyethylene inner bag contained in white plastic knitted bag)1000 kg/bag (polyethylene inner bag contained in white plastic knitted bag) 2) Not a hazardous substance; can be shipped as regular product 3) Store in dry place