Riel Chemical Co., Ltd.
                                                                                                           
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Since 2005
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96% White Solid Sodium Tripolyphosphate For Waste Water Treatment

Price Negotiable
Price: USD 730~800 FOB
MOQ: 1 ton
Delivery Time: 3~5 work day
Brand: Riel Chemical
Product Description
96% White Solid Sodium Tripolyphosphate For Waste Water Treatment
Product Specifications
CAS 7758-29-4
EINECS 231-838-7
Appearance White particles or powder
Crystalline hydrate Water-free
Alternative Name 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
Standard GB/T 9983-2004
Quality Parameters
Parameter Standard Value
Sodium Tripolyphosphate Content ≥ 96.0%
Phosphorus Pentoxide (P2O5) ≤ 57.0%
Water Insoluble ≤ 0.10%
Iron ≤ 0.007%
pH Value (1%) 9.2-10.0
Whiteness ≥ 90
Sodium Tripolyphosphate product sample Sodium Tripolyphosphate packaging
Physical and Chemical Properties
  • Appearance: White crystalline or powdery solid
  • Form: Typically exists as an anhydrous compound (Na5P3O10) or hexahydrate
  • 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)
  • Hygroscopicity: Strong moisture absorption from air
  • Chelating Ability: Forms stable complexes with metal ions (Ca, Mg, Fe)
Industrial application of Sodium Tripolyphosphate
Key Applications
  • Detergent Industry: Water softener, prevents dirt redeposition
  • Industry (E451): Water retention, texture improvement
  • Water Treatment: Prevents scaling and corrosion in boilers/cooling systems
  • Ceramics/Building Materials: Dispersant for improved slurry fluidity
  • Textile Industry: Printing/dyeing aid for uniform coloration
  • Other Applications: Petroleum, metal processing, paper, coatings
Product Advantages
  • Quality Assurance: High purity (≥96%), batch-to-batch consistency
  • Environmental Compliance: Meets international environmental standards
  • Customization: Available in various particle sizes and packaging
  • Global Supply: Exported to Europe, America, and Southeast Asia
  • Cost Efficiency: Large-scale production ensures competitive pricing
Quality control process Industrial packaging of STPP
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?
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.
Can the price be negotiated?
We offer competitive pricing that can be negotiated based on order quantity and terms.
Can I visit your factory in China?
Yes, we welcome visits to our facility in Weifang, China (airport pickup available).
What if there are quality issues?
Our professional after-sales team promptly addresses any quality concerns.

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

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