CAS 7758-29-4 Na5P3O10 Sodium Tripolyphosphate For Industry Stpp Powder
| Attribute | Value |
|---|---|
| CAS | 7758-29-4 |
| EINECS | 231-838-7 |
| Appearance | White particles or powder |
| Crystalline hydrate | Water-free |
| Another name | Sodium Triphosphate |
| Life span | Two years |
| Available port | Qingdao Port, Tianjin Port, Shanghai Port, Lianyungang Port, Fujian Port, Guangzhou Port |
| Fusing point | 622℃ |
| Solubility | H2O: may be clear to slightly hazy |
| Density | 2.52 g/cm³ |
CAS 7758-29-4 Na5P3O10 Sodium Tripolyphosphate For Industry
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade CAS: 7758-29-4
| Items for detecting and analyzing | Standard value |
|---|---|
| Main content: sodium tripolyphosphate ≥ | 96.0% |
| Phosphorus pentoxide P2O5≤ | 57.0% |
| Water insoluble≤ | 0.10% |
| Iron ≤ | 0.007% |
| Ph Value (1%) | 9.2-10.0 |
| Whiteness ≥ | 90 |
- Chemical Formula: Na₅P₃O₁₀
- Molecular Weight: 367.86 g/mol
- Appearance: White crystalline or powdery solid
- Form: Typically exists as an anhydrous compound (Na₅P₃O₁₀) or a hexahydrate (Na₅P₃O₁₀*6H₂O)
- Water Solubility: Highly soluble in water, with solubility increasing with temperature
- Other Solvent: Insoluble in organic solvents (e.g., ethanol)
- Aqueous Solution pH: The pH of a 1% aqueous solution is approximately 9.5-10.5, making it alkaline
- Decomposition Temperature: Decomposes at high temperatures (around 622°C)
- Hydrate Stability: The hexahydrate tends to effloresce in dry air
- Property: Strong hygroscopicity; easily absorbs moisture from the air
- Property: STPP has strong chelating ability with metal ions
- Application: Highly valuable in water treatment, detergents, and processing
Sodium Tripolyphosphate (STPP) is an important chemical product, widely used in detergent, processing, water treatment and other fields.
- Late 19th century: Chemical properties of phosphate were studied
- Early 20th century: STPP was synthesized as a highly effective chelating agent
- Mid-20th century: Became key ingredient in detergent formulations
- 1950s-1970s: Mass-produced worldwide for household and industrial detergents
- 1970s-1980s: Environmental concerns led to restrictions
- Development of alternatives like zeolite and sodium citrate
- industry: Water retaining agent and quality improver
- Water treatment: Corrosion inhibitor and scale inhibitor
- Other industries: Ceramics, textiles, paper
- Environmentally friendly alternatives
- Technological innovation for more eco-friendly production
Main ingredient in many household and industrial detergents due to its excellent decontamination and water softening ability.
Used as a water retaining agent in meat and sea processing to improve taste and texture.
Used as a corrosion inhibitor and scale inhibitor in water treatment systems.
Used as a grinding aid and dispersant in ceramic production.
Used as a washing aid and bleaching stabilizer in textile processing.
Used as a dispersant and retention agent in papermaking.
Used in various cleaning agents and industrial cleaning applications.
Gradually being replaced by environmentally friendly alternatives in some fields.
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