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Trisodium Phosphate

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Detailed Product Description

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

Chemical formula: Na3PO4·12H2O

Molecular weight: 380.14

Standard executed: HG/T2517-93

Properties:

1. Appearance: white or colorless crystals;

2. Efflorescent in air;

3. Solubility: easily soluble in water but not in organic solution;

4. pH: water solution is alkaline, and pH value of 1% solution is 12.1;

5. Relative density: 1.62;

6. Melting point: 73.4^oC.

Technical Specifications:

No	Specifications	Industrial Grade	Food Grade
1	Main content	98.0% min.	98.0% min.
2	P₂O₅	18.3% min.	18.3% min.
3	Chloride, as Cl	1.5% max.	0.3% max.
4	Sodium oxide, as Na₂O	15.5-19.0%	15.5-19.0%
5	Sulfate, as SO₄	0.5% max.	0.5% max.
6	Heavy metal, as Pb	-	0.001% max.
7	Arsenic, as As	-	0.0003% max.
8	Fluoride, as F	-	0.002% max.
9	Water insoluble	0.10% max.	0.05% max.

Application: Used as water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and pushing fluxing in enamel ware manufacturing, etc.