Industrial Wastewater Treatment Sodium Tripolyphosphate CAS 7758-29-4 Na5P3O10
Product Specifications
CAS Number | 7758-29-4 |
EINECS | 231-838-7 |
Appearance | White particles or powder |
Crystalline Hydrate | Water-free |
Alternative Names | Sodium Triphosphate |
Shelf Life | Two years |
Available Ports | Qingdao, Tianjin, Shanghai, Lianyungang, Fujian, Guangzhou |
Melting Point | 622℃ |
Solubility | Soluble in water (aqueous solution is alkaline) |
Technical Specifications
Molecular Formula | Na5P3O10 |
Molecular Weight | 367.86 g/mol |
Standard Compliance | GB/T 9983-2004 |
Quality Parameters
Parameter | Standard Value |
Sodium Tripolyphosphate Content ≥ | 96.0% |
Phosphorus Pentoxide (P2O5) ≤ | 57.0% |
Water Insoluble Matter ≤ | 0.10% |
Iron Content ≤ | 0.007% |
pH Value (1% solution) | 9.2-10.0 |
Whiteness ≥ | 90 |
Physical and Chemical Properties
- Appearance: White crystalline or powdery solid
- Forms: Anhydrous (Na5P3O10) or hexahydrate (Na5P3O10·6H2O)
- Water Solubility: Highly soluble (14g/100mL at 20°C, 30g/100mL at 60°C)
- pH (1% solution): 9.5-10.5 (alkaline)
- Decomposition Temperature: 622°C (forms sodium pyrophosphate and metaphosphate)
- Hygroscopic: Absorbs moisture from air, may form clumps
- Metal Chelation: Forms stable complexes with Ca, Mg, Fe ions
Market Applications
Detergent Industry
Traditional use as detergent builder, though being replaced in some markets due to environmental concerns.
Food Industry
Used as food additive E451 for water retention and texture improvement in meat/seafood products.
Water Treatment
Effective for scale prevention and corrosion inhibition in industrial water systems.
Environmental Considerations
- Potential for water eutrophication has led to phosphorus restrictions in some regions
- Developing countries still maintain significant market demand
- Research ongoing for more environmentally friendly alternatives
Riel Chemical Product Advantages
- Quality Assurance: Strict quality control and batch consistency
- Environmental Compliance: Meets international environmental standards
- Technical Support: Experienced R&D team and customized solutions
- Global Reach: Exported to Europe, America, and Southeast Asia
- Cost Efficiency: Large-scale production reduces unit costs
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight payment terms.
Are you able to deliver on time?
We specialize in timely deliveries while maintaining top product quality.
Do you provide free samples?
Yes, we provide free samples with the customer covering express fees.
How about the price? Can you make it cheaper?
We offer competitive pricing with negotiation possible based on order volume.
Can I visit your company and factory in China?
Yes, we welcome visits to our Weifang facility with airport pickup service.
What if there is a quality problem?
Our professional after-sales team promptly resolves any quality issues.