Synonyms: Sodium Hexameta Phosphate; Sodium Hexa Meta Phosphate
Chemical formula: (NaPO3)6
Molecular weight: 611.82
Standard executed: HG/T2837-1997
CAS No.: 10124-56-8
H.S. Code: 28353900
Properties:
1. Appearance: white powder;
2. Relative density: 2.484 (20 degree centigrade);
3. Solubility: easily soluble in water, but not in organic solution;
4. Absorbent to dampness, and turn sticky when absorbed dampness in air;
5. Can form soluble chelate with metallic ions such as Ca, Ba, Mg, Cu and Fe.
Technical Specifications:
1.Industrial grade:
(1)Total phosphate, as P2O5: 68.0% min.
(2)Inactive phosphate, as P2O5: 7.5% max.
(3)pH of 1% water solution: 5.8-7.3
(4)Solubility: Qualified
(5)Water insoluble: 0.05% max.
(6)Iron, as Fe: 0.05% max.
2.Food grade:
(1)Total phosphate, as P2O5: 68.0% min.
(2)Inactive phosphate, as P2O5: 7.5% max.
(3)pH of 1% water solution: 5.8-6.5
(4)Solubility: Qualified
(5)Water insoluble: 0.0 6% max.
(6)Arsenic, as As: 0.0003% max.
(7)Fluoride, as F: 0.003% max.
(8)Heavy metal, as Pb: 0.001% max.
(9)Iron, as Fe: 0.05% max.
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