Specification :

Used as soft water agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing, and so on.
Item Unit Specification
Anhydrous Hydrate
Tech grade Food grade Tech grade Food grade
Main content£º % 98 min 98 min 98 min 98 min
Phosphorus pentoxide as P2O5: % 39.5 min 39.5 min 18.3 min 18.3 min
Sodium oxide as Na2O: % 36-40 36-40 15.5-19 15.5-19
Sulfate as SO4: % -- 0.25 max -- 0.5 max
Heavy metal as Pb: % -- 0.001 max -- 0.001 max
Arsenic as As: % -- 0.0003 max -- 0.0003 max
Fluoride as F: % -- 0.005 max -- 0.005 max
Water insoluble: % 0.05 max 0.05 max 0.05 max 0.05 max