Detailed Product Description
Chemical formula: Na2HPO4.12H2O
Molecular weight: 358.14
Standard executed: GB6008-85
Properties: White or colorless crystal, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density is 1.63, melting point is 34.6 degree centigrade.
Technical Specifications:
1.Industrial grade:
(1)Main content: 97.0% min. (2)P2O5: 19.2% min. (3)pH of 1% water solution: 8.8-9.2 (4)Water insoluble: 0.10% max. (5)Arsenic, as As: 0.005% max. (6)Fluoride, as F: 0.05% max. (7)Chloride, as Cl: 0.05% max. (8)Sulfate, as SO4: 0.7% max.
2.Food grade:
(1)Main content: 97.0% min. (2)P2O5: 19.4% min. (3)pH of 1% water solution: 8.8-9.2 (4)Water insoluble: 0.05 (5)Arsenic, as As: 0.0003% max. (6)Fluoride, as F: 0.002% max. (7)Heavy metal, as Pb: 0.001% max. (8)Chloride, as Cl: 0.14% max. (9)Sulfate, as SO4: 0.25% max.
Applications: Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, and etc.
Packaging: Plastic-woven sack with polythene inner bag. Net weight: 25kg, 50kg or 1000kg.