Tetrasodium pyrophosphate 10AQ
General Product Information
| Article | Tetrasodium pyrophosphate 10AQ |
| Synonyms | Tetrasodium pyrophosphate decahydrate, Tetrasodium diphosphate, Pyrophosphate, Sodium pyrophosphate, TSPP |
| CAS No. | 7722-88-5 |
| EEG No. | – |
| EINECS No. | 231-767-1 |
| IMO | – |
| Tariff Code | 28353900 |
| UN No. | – |
| VLG/ADR | – |
Description
Tetrasodium pyrophosphate is an inorganic compound belonging to the Class of pyrophosphates. It is a salt of sodium and pyrophosphoric acid, often used as a water softener, emulsifier, stabilizer and dispersant in various industrial and commercial applications. It is common in the chemical industry, food production and cleaning agents.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White to light yellow.
- Grade: Technical.
- Solubility: Highly soluble in water, insoluble in alcohol.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Na4P2O7 |
| Molar Weight | 265.9 g/mol |
| Melting Point | >400 °C (decomposes) |
| Boiling Point | – |
| Density | – |
| Refractive Index | – |
| pH | 9-10 (on 1% solution) |
Applications
Tetrasodium pyrophosphate is applied in various ways, for instance:
1. Water Treatment
In water treatment processes, TSPP helps reduce scale and lower water hardness, which is beneficial for industrial plants.
2. Detergents & detergents
Due to its ability to bind calcium and magnesium ions, tetrasodium pyrophosphate acts as a water softener, significantly increasing the effectiveness of detergents and cleaning products.
3. Chemical Industry
TSPP is used as a dispersant and stabilizer in pigments, coatings, ceramics and various other products. It contributes to improved processability and product quality.
Interessing Links
- CAS Common Chemistry – Tetrasodium pyrophosphate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Pyrophosphate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Tetrasodium pyrophosphate