Usage:Used as soft water agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing, and so on.
Standard:
Item Unit Specification
Anhydrous Hydrate
Tech grade Food grade Tech grade Food grade
Main content： % 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
