Purity 98 Trisodium Phosphate TSP CAS 7601-54-9 White Crystal
98% Trisodium Phosphate TSP CAS 7601-54-9 White Crystal for Softened Water Quality
| Attribute | Value |
|---|---|
| CAS | 15475-67-9 |
| EINECS | 231-509-8 |
| Appearance | White crystal |
| Crystalline hydrate | 12 Water crystals |
| Life span | Two years |
| Industry | Chemical industry |
- Products: Trisodium phosphate/TSP
- Industrial grade (anhydrous) TSP CAS 7601-54-9
- 98% Na3O4P
- TSP CAS 7601-54-9
- 97% Na3O4P
| Test Item | Standard Value (%) |
|---|---|
| Main content: trisodium phosphate ≥ | 98 |
| Sulphate (as SO4) ≤ | 0.50 |
| Chlorine (as Cl) ≤ | 0.30 |
| Water insoluble ≤ | 0.05 |
| Methyl orange alkalinity (Na2) | 16.5-19.0 |
| Iron (Fe) ≤ | 0.01 |
| Arsenic (as As) ≤ | 0.005 |
- Molecular weight: 367.86 g/mol
- Appearance: white crystalline or powdery solid
- Odor: Odorless or slightly sulphide odor
- Density: 2.52 g/cm³ (25°C)
- Melting point: about 622°C (decomposition)
- Chemical Safety: Unrestricted goods
- Solubility: Easily soluble in water (pH about 9-10), insoluble in ethanol and other organic solvents
- Hydrolysis: Gradually hydrolyzed in water to form orthophosphate
- Complexation: Forms soluble complexes with metal ions (Ca²⁺, Mg²⁺) for softening hard water
- Thermal stability: Decomposes at >600°C to form sodium phosphate and oxygen
- Water Quality Softening
Reacts with calcium and magnesium ions in water to generate insoluble precipitation, thus softening water quality.
Reaction equation: 3Ca²⁺ + 2PO₄³⁻ → Ca₃(PO₄)₂↓ - Scale Prevention
By chelating calcium and magnesium ions, prevents scale formation in boilers and pipes. Widely used in boiler water treatment and cooling water systems. - Corrosion Inhibition
Forms protective film on metal surfaces to prevent corrosion. Used in boilers, heat exchangers and cooling water systems. - pH Adjustment
As an alkaline substance, regulates water pH. Used in industrial wastewater and swimming pool water treatment. - Dispersant
Disperses suspended particles to prevent deposition. Used in circulating cooling water systems. - Microbial Control
Inhibits microorganism growth by increasing water pH. Used in drinking water and industrial water treatment.
- Flocculant: Helps remove suspended solids
- Cleaning agent: Removes sediment and dirt from water treatment equipment
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