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Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal

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Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal

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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

Water solubility : Soluble in water

Brand Name : Riel Chemical

Model Number : 96%

Certification : SGS, ISO9001, CE

Place of Origin : Weifang

MOQ : 20 tons

Price : USD 730～800 FOB

Payment Terms : T/T , L/C

Supply Ability : 50 tons per day

Delivery Time : 3～5 work day

Packaging Details : 25 kg polyethylene woven bag, moisture-proof, easy to transport

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Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal
Product Specifications
Attribute Value
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
Water solubility Soluble in water
Product Description

Molecular formula: Na5P3O10

Molecular weight: 367.86

Industrial grade CAS: 7758-29-4

Industrial grade products & COA meets GB/T 9983-2004 standard:

Items for detecting and analyzing 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
Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal
Physical and Chemical Properties
  • Chemical Formula: Na₅P₃O₁₀
  • Molecular Weight: 367.86 g/mol
  • Appearance: White crystalline or powdery solid
  • 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
  • Key Property: Strong chelating ability with metal ions (calcium, magnesium, iron)
Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal
Industry News & Applications
1. The phosphorus restriction policy in the detergent industry continues to advance

Due to the extensive use of sodium tripolyphosphate in detergents, its discharge may lead to eutrophication of water bodies. The European Union, United States and China have implemented phosphorus restriction policies, promoting phosphorus-free or low-phosphorus detergents.

2. The application in industry is concerned

As a additive (E451), STPP is used for water retention and texture improvement in meat and sea products. Some countries have imposed stricter restrictions due to increased safety concerns.

3. Market price fluctuations

Since 2022, STPP prices have fluctuated due to global supply chain issues and rising raw material costs. China's export prices significantly impact the international market.

4. Progress in environmentally friendly alternatives

Research institutions are developing phosphorus-free detergents and water treatment agents (zeolite, polycarboxylate) to reduce reliance on STPP.

Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal Industrial Use ≥ 96% STPP White Powder 25kg/bag For Calcium Removal
Riel Chemical Advantages
  • Technology Leadership: Advanced production technology and strong R&D capabilities
  • Quality Assurance: ISO9001 certified with strict quality control and batch consistency
  • Environmental Focus: Low-toxicity, low-pollution products with clean production processes
  • Diverse Product Line: Customized solutions and one-stop supply for various industries
  • Market Recognition: Trusted by domestic and international customers with long-term partnerships
  • Cost Efficiency: Large-scale production reduces costs with fast response and technical support
  • Global Reach: Products 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 - customers only need to cover the express fee.

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?

You're welcome to visit our Weifang facility. We provide airport pickup/drop-off services.

What if there is a quality problem?

Our professional after-sales team promptly addresses all quality concerns.


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