96% CAS 7758-29-4 Sodium Tri Poly Phosphate For Industrial Manufacturing
| Attribute | Value |
|---|---|
| CAS | 7758-29-4 |
| EINECS | 231-838-7 |
| Appearance | White powder |
| Crystalline hydrate | No Water crystals |
| Life span | Two years |
| Stats | Chemical materials |
| PH | 9~10 |
Molecular formula: Na5P3O10
Molecular weight: 367.86
| Test Item | Standard Value |
|---|---|
| Main content: sodium tripolyphosphate ≥ | 96.0% |
| Phosphorus pentoxide P2O5 ≤ | 57.0% |
| Water insoluble ≤ | 0.10% |
| Fluoride (as F) ≤ | 0.007% |
| Ph Value (1%) | 9.2-10.0 |
| Whiteness ≥ | 90 |
| Test Item | Standard Value |
|---|---|
| Main content: sodium tripolyphosphate ≥ | 95.0% |
| Phosphorus pentoxide P2O5 ≤ | 57.0% |
| Water insoluble ≤ | 0.05% |
| Fluoride (as F) ≤ | 0.003% |
| Heavy metal (as Pb) ≤ | 0.001% |
| Arsenic (as As) ≤ | 0.0003% |
| Sulphate (as SO4) ≤ | 0.4% |
| Chlorine (as Cl) ≤ | 0.025% |
| Ph Value (1%) | 9.5-10.0 |
| Whiteness ≥ | 85 |
References: Riel Chemical Lab1&2, National public service platform for standards information.
- White granular or powder, showing a density of 0.35-0.90G/CM3, melting point 622°C
- Easily soluble in water, the aqueous solution is alkaline (PH of 1% aqueous solution is 9.7)
- Gradually hydrolyzed into phosphite in water
- Excellent metal complexation ability - can complex with calcium, magnesium, iron and other metal ions to produce soluble complexes
- Softens hard water
- Functions as an inorganic surfactant with some properties of organic surfactants
- When compounded with surfactants (such as LAS), enhances decontamination power and prevents redeposition of dirt
- Softens hard water by chelating Ca²⁺ and Mg²⁺, enhancing washing effect
- Alternative technologies for phosphorus-free detergents exist due to environmental restrictions (eutrophication), but still widely used in industrial cleaning agents
- Moisture retention agent for meat and sea (ham, fish balls) to enhance water retention and improve taste
- Inhibits fat oxidation to extend shelf life
- Quality improver - enhances elasticity in noodles and canned , prevents starch from aging
- Water softener and scale inhibitor for boiler water and circulating cooling water systems
- Prevents Ca/Mg scaling and chelates metal ions (Fe³⁺, Cu²⁺) to reduce pipeline corrosion
- Dispersant to prevent particle aggregation in papermaking and ceramic slurries
- Petroleum industry: Drilling mud additive for viscosity and stability control
- Textile printing and dyeing: Bleaching assistant to improve dye uniformity
- Metal surface treatment: Component of cleaning agents before electroplating for removing grease and oxides
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