Prevent Pipe Blockage 96% White Sodium Tripolyphosphate STPP Industrial Grade
| 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 |
| Sensibility | Hygroscopicity |
| Smell | Odorless |
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade: CAS 7758-29-4
Industrial grade products & COA meets GB/T 9983-2004 standard:
| 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. At 20°C, solubility is approximately 14 g/100 mL. At 60°C, solubility is approximately 30 g/100 mL.
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) into sodium pyrophosphate (Na₄P₂O₇) and sodium metaphosphate (NaPO₃).
Hydrate Stability: The hexahydrate tends to effloresce in dry air, losing its water of crystallization.
Property: Strong hygroscopicity; easily absorbs moisture from the air and may form clumps.
Property: STPP has strong chelating ability, forming stable soluble complexes with metal ions such as calcium, magnesium, and iron in water.
Application: This property makes it highly valuable in water treatment, detergents, and processing.
The growth prospects of sodium tripolyphosphate (STPP) in the Americas are influenced by several key factors:
- Market demand: Stable demand in detergents, processing, and water treatment industries
- Environmental regulations: Phosphorus restriction policies may limit STPP demand
- Technological progress: Production improvements and environmentally friendly technologies
- Competitive landscape: Increasing competition from alternatives
- Economic environment: Growth and raw material price fluctuations affect market
Future outlook: Short-term demand remains stable, but long-term market share may decline with environmental requirements.
- Detergent industry: Key ingredient in detergents as water softener and dispersant
- processing: Used as preservative and quality improver in meat products
- Water treatment: Prevents scale formation in industrial and municipal systems
- Ceramic industry: Slurry dispersant for improved product quality
- Petroleum industry: Drilling fluid additive for viscosity control
- Textile industry: Dyeing aid for improved color uniformity
- Other applications: Metal surface treatment, paper industry, and more
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