Synonyms: Sodium Tripoly Phosphate; Sodium Tri Poly Phosphate
Chemical formula: Na5P3O10
Molecular weight: 367.86
Standard executed: GB9983-88
CAS No.: 7758-29-4
H.S. Code: 28353100
Properties:
1. Appearance: white microdot powder with luster;
2. Melting point: 622 degree centigrade;
3. Solubility: easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+;
4. pH: slightly alkaline;
5. Without causticity.
Technical Specifications:
1.Industrial grade:
(1)Appearance: White powder
(2)Main content: 94.0% min.
(3)P2O5: 57.0% min.
(4)pH of 1% water solution: 9.2-10.0
(5)Iron, as Fe: 0.015% max.
(6)Water insoluble: 0.1% max.
(7)Density: 0.7-1.0 g/cm3
2.Food grade:
(1)Appearance: White powder
(2)Main content: 94.0% min.
(3)P2O5: 57.0% min.
(4)pH of 1% water solution: 9.5-10.0
(5)Iron, as Fe: 0.01% max.
(6)Water insoluble: 0.05% max.
(7)Arsenic, as As: 0.0003% max.
(8)Fluoride, as F: 0.003% max.
(9)Heavy metal, as Pb: 0.001% max.
(10)Chloride, as Cl: 0.025% max.
(11)Density: 0.7-1.0 g/cm3
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