Technical Grade CAS7758-29-4 STPP For Water Treatment Softener
Product Specifications
| 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 |
Soluble in water, its aqueous solution is alkaline |
Technical Specifications
Molecular Composition
Molecular formula: Na5P3O10
Molecular weight: 367.86
Quality Standards (GB/T 9983-2004)
| Parameter |
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 |
Physical and Chemical Properties
- Chemical Formula: Na5P3O10
- Molecular Weight: 367.86 g/mol
- Appearance: White crystalline or powdery solid
- Form: Typically exists as an anhydrous compound or hexahydrate
- Water Solubility: Highly soluble (14 g/100 mL at 20°C, 30 g/100 mL at 60°C)
- pH (1% solution): 9.5-10.5 (alkaline)
- Decomposition Temperature: 622°C (forms sodium pyrophosphate and metaphosphate)
- Key Property: Strong chelating ability with metal ions (Ca, Mg, Fe)
Applications
1. Detergents and Cleaners
- Softens water by chelating calcium and magnesium ions
- Prevents scale formation and dirt redeposition
- Maintains optimal alkaline pH for cleaning
2. Processing (E451)
- Water retention in meat and sea products
- Texture improvement in processed s
- Shelf life extension
3. Industrial Water Treatment
- Prevents scaling in boilers and cooling systems
- Reduces corrosion in pipes and equipment
4. Other Industrial Applications
- Ceramics production (slurry dispersant)
- Textile printing and dyeing (dye dispersant)
- Petroleum industry (drilling fluid additive)
- Metal treatment (cleaning and rust prevention)
- Paper manufacturing (filler dispersant)
- Coatings formulation (stabilizer)
Product Advantages
1. High Quality and Stability: Advanced production technology with strict quality control ensures high purity and batch-to-batch consistency.
2. Environmental Compliance: Clean production processes meet domestic and international environmental regulations.
3. Technical Innovation: Continuous R&D improves product performance and develops new applications.
4. Customization: Available in various specifications with tailored solutions for specific needs.
5. Market Recognition: Trusted by domestic and international customers with long-term partnerships.
6. Global Supply: Exported worldwide with multiple international certifications.
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight as payment terms.
Are you able to deliver on time?
Yes, we specialize in this product line and guarantee timely delivery while maintaining top quality.
Do you provide free samples?
Yes, we provide free samples with the customer responsible for express shipping costs.
How about the price? Can you make it cheaper?
We offer competitive pricing and are open to negotiation based on order quantity and terms.
Can I visit your company and factory in China?
Yes, we welcome visits to our facility in Weifang, China, with airport pickup service provided.
What if there is a quality problem?
Our professional after-sales team promptly addresses any quality concerns.
