Sodium Tripolyphosphate Anhydrous STPP Sodium CAS 7758-29-4 For Metal Finishing
Price:
USD 730～800 FOB
MOQ:
1 ton
Delivery Time:
3～5 work day
Brand:
Riel Chemical
Product Description
Sodium Tripolyphosphate Anhydrous STPP (CAS 7758-29-4) for Metal Finishing
Product Description
Industrial-grade Sodium Tripolyphosphate (STPP) specifically formulated for metal finishing applications.
Product Specifications
| CAS | 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°C |
| Solubility | H2O: clear to slightly hazy |
| Dangerous goods mark | Xi |
| logP | 1.49640 |
Technical Specifications
| Molecular formula | Na5P3O10 |
| Molecular weight | 367.86 |
| Standard | GB/T 9983-2004 |
Quality Standards
| 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 in water (14 g/100 mL at 20°C, 30 g/100 mL at 60°C)
- Aqueous Solution pH: 9.5-10.5 (1% solution)
- Decomposition Temperature: 622°C
- Property: Strong hygroscopicity and chelating ability with metal ions
Market Development and Future Prospects
Market Demand: Growing in detergent industry, processing, and water treatment applications
Economic Factors: Industrial growth driving demand for industrial detergents and water treatment chemicals
Environmental Considerations: Potential phosphorus restrictions may affect detergent applications
Technological Advancements: Production process improvements reducing costs and increasing competitiveness
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 fees.
How about the price? Can you make it cheaper?
We prioritize customer benefits and offer competitive, negotiable pricing based on order conditions.
Can I visit your company and factory in China?
Yes, you're welcome to visit our facility in Weifang, China (we provide airport transportation).
What if there is a quality problem?
Our professional after-sales team promptly addresses all quality concerns.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Riel Chemical Co., Ltd.
Location
1007, Qingzhou Taihua Building, Weifang City, Shandong Province, China
Contact Person
Jenkins Hu / Jinxu Hu