Trisodium phosphate 12AQ
General Product Information
| Article | Trisodium phosphate 12AQ |
| Synoniemen | Trisodium phosphate dodecahydrate, Trisodium orthophosphate |
| CAS No. | 7601-54-9 |
| EEG No. | – |
| EINECS No. | 231-509-8 |
| IMO | – |
| Tariff Code | 28352930 |
| UN No. | – |
| VLG/ADR | – |
Description
Trisodium phosphate 12AQ (dodecahydrate) is a widely used inorganic phosphate. The product occurs as a white, crystalline, odorless powder. Trisodium phosphate is known for its strong alkaline properties, high water solubility and wide applicability in various industrial sectors. It is widely used as a detergent, water softener, emulsifier and pH regulator.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water; insoluble in ethanol.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Na3PO4-12H2O |
| Molar Weight | 380.12 g/mol |
| Melting Point. | Approx. 73 °C (decomposition). |
| Boiling Point | – |
| Density | Approx. 1.62 g/cm³. |
| Refractive Index | – |
| pH | 11.5-12.5 (on 1% solution) |
Applications
Trisodium phosphate 12AQ is applied in various ways, for instance:
1. Cleaning Products Industry
Widely used in detergents, dishwashing agents and industrial cleaners because of its ability to soften water and emulsify fats and oils.
2. Water Treatment
Effective in binding calcium and magnesium ions, thus preventing scale formation in pipes and industrial plants.
3. Textile & Paper Industry
Applied at surface treatment of materials, pH regulation and process water conditioning.
4. Chemical Industry
Used as a pH buffer, complexing agent or raw material in synthesis processes.
Interessing Links
- CAS Common Chemistry – Trisodium Phosphate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Trisodium Phosphate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Trisodium phosphate