ITEM STANDARD Na5p3o10 % í¦ 95.0 p2o5 % í¦ 57.0 water insoluble % í_ 0.05 F % í_ 0.003 As % í_ 0.00013 Heavy metals (Pb) % í_ 0.001 chloride (Cl) % í_ 0.025 sulphate (so4) % í_ 0.4 whiteness % í¦ 85 ph(1% aqueous solution) 9.5-10.0 . 25Kg, 50Kg in plastic woven bags.
