Product Name: Disodium Phosphate Type: Food Additives Origin: China CAS No.: 7558-79-4 AUCO No.: 351 Packing: 25kg bag" Items Standard Appearance White powder Assay % 99 Phosphorus pentoxide % 49.5 PH(10g/L solution) 8.5-10.0 Sulfate,as SO4 % 0.25 Heavy metals, as Pb % 0.001 Arsenic, as As % 0.0003 Fluoride as F Â % 0.002 Water insoluble % 0.1 Cl % 0.014 Lead % 0.0004 Fe % 0.002 Loss on drying % 2.0