Synonyms: Tri Sodium Phosphate Anhydrous; Sodium Phosphate Tribasic Anhydrous; Phosphoric Acid, Trisodium salt

Chemical formula: Na3PO4

Molecular weight: 163.97

CAS No.: 7601-54-9

H.S. Code: 28352910

Properties:

1. Appearance: white or yellow powder;

2. Solubility: soluble in water easily, but not in organic solvent;

3. pH: water solution is alkaline, and pH of 1% water solution is12.1;

4. Relative density: 2.537;

5. Melting point: 134 degree centigrade.

Technical Specification:

1.Industrial grade:       

(1)Appearance: White powder

(2)Main content: 98.0% min.

(3)Na2O: 36-40%

(4)P2O5: 42.4% min.

(5)pH of 1% water solution: 11.5-12.5

(6)Water insoluble: 0.1% max.

(7)Sieve test(Through 60 mesh): 90.0% min.

2.Food grade:

(1)Appearance: White powder

(2)Main content: 98.0% min.

(3)Na2O: 36-40%

(4)P2O5: 42.4% min.

(5)pH of 1% water solution: 11.5-12.5

(6)Water insoluble: 0.1% max.

(7)Arsenic, as As: 0.0003% max.

(8)Fluoride, as F: 0.002% max.

(9)Heavy metal, as Pb: 0.001% max.

(10)Sieve test(Through 60 mesh): 90.0% min.

Application: Used as water softening agent for boiler, cleaning agent in electroplating, etc.

Packing: Plastic-woven sack with polythene inner bag. Net weight: 25kg or 50kg or 1000kg. Stored in ventilated and dry place.

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