Trisodium Phosphate(TSP) (CH009)

Chemical formula: Na3PO4.12H2O
Molecular weight: 380.14
Standard executed: HG/T2517-93
Properties: White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. pH value of 1% solution is 12.1, relative density at 1.62, melting point is 73.4 degree centigrade.
Technical Specifications:
1.Industrial grade:
(1)Main content: 98.0% min. (2)P2O5: 18.3% min. (3)Sodium oxide, as Na2O: 15.5-19.0% (4) Sulfate, as SO4: 0.5% max. (5)Water insoluble: 0.1% max. (6)Chloride, as Cl: 1.5% max.
2.Food grade:
(1)Main content: 98.0% min. (2)P2O5: 18.3% min. (3)Sodium oxide, as Na2O: 15.5-19.0% (4)Sulfate, as SO4: 0.5% max. (5)Water insoluble: 0.05% max. (6)Arsenic, as As: 0.0003% max. (7)Fluoride, as F: 0.002% max. (8)Heavy metal, as Pb: 0.001% max. (9) Chloride, as Cl: 0.3% max.
Application: Used as water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.