| CAS No.: | 7758-29-4 |
|---|---|
| EINECS: | 28352900 |
| Certification: | ISO |
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Trisodium phosphate/ Na3PO4/ CAS 7758-29-4/ White crystalline powder or granule/ Molecular weight 163.94/EINECS 231-509-8
| Product name |
Trisodium phosphate |
| Density |
2.536 g/cm3(17.5C) |
| boiling point | 158 at 760 mmHg |
| melting point | 73.3-76.7 |
| molecular formula | Na3PO4 |
| molecular weight | 163.94 |
| PSA | 96.06 |
| LogP | 0.386 |
| Appearance | White crystalline powder and granule |
| Storage conditions | The product should be stored in cool, ventilated and dry warehouse, pay attention to moisture and avoid heat. |
| Stability |
1. In dry air, it is easy to be deliquesced and weatered, generating sodium dihydrogen phosphate and sodium bicarbonate. 2. In water, it is almost completely decomposed into disodium hydrogen phosphate , soluble in water. 3. The aqueous solution is alkaline. |
| Water solubility |
Dissolved grams per 100 ml of water at different temperature(): 4.5g/0; 8.2g/10; 12.1g/20; 16.3g/30; 20.2g/40; 20.9g/60; 60g/80; 68.1g/90; 77g/100 |
Use of trisodium phosphate
1. Used as analytical reagent and water softener, also used for the purification of sugar.
2. Used as water softener and detergent, boiler anti-scaling agent, colour-fixing agent in printing and dyeing, mercerizing enhancement agent for fabrics, metal corrosion inhibitor or antirust agent. Used as flux and decolorizer in enamel industry. It is used as degreasing agent and degumming agent in tanning industry.
3. Work quality improver, have to improve the food complex metal ions, pH value, increase the ionic strength of the role, thus improving the adhesion of food and water retention.
4. It can be used as water softener and detergent, boiler anti-scalling agent, colour-fixing agent in printing and dyeing, mercerizing enhancement agent for fabrics, metal corrosion inhibitor and metal antirust agent, enamel production flux and decolorant, tannery hide degreasing agent and debinding agent. Food grade sodium phosphate dodecahydrate is used as emulsifier, quality improver, nutritional supplement in food processing, as well as detergent for food bottles(can).
| Item | Index | Test Result |
| Trisodium phosphate(Na3PO4 12H2O%)W/%≥ | 98.0 | 98.04 |
| Sulphate(SO4)w/%≤ | 0.5 | 0.4 |
| Chloride(CL)w/%≤ | 0.4 | 0.37 |
| Arsenlc(As)w/%≤ | 0.005 | 0.003 |
| Iron(Fe)w/%≤ | 0.01 | 0.008 |
| Water-fast matter w/%≤ | 0.1 | 0.08 |
| Water insoluble matter w/%≤ | 0.2 | 0.08 |
| Ph | 11.5-12.5 | 12.3 |
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