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Ahmed KhanI'm a trader from Pakistan. I have bought sodium hempetaphosphate with Manager Hu and worked with him for 3 times. THKs Hu, now I have become a local agent. Riel Chemical is indeed a trusted partner. Highly recommended for friends who need high quality chemical products.
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Maria J GarciaOverall, I was impressed. Whether it is product details or service response speed, it is done very well, and customers are satisfied. Warmly tips: Could you guys add more payment methods?that would be great.
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LabrekeoLa vitesse de livraison est très satisfaisante et presque aucune inquiétude. Chaque fois que la coopération fonctionne sans à-coup. Recommandez sincèrement à d’autres acheteurs!
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محمد لاگولدشریک خوب، پیدا کردن چنین تامین کننده ای عالی است، برای شما آرزوی موفقیت دارم
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JackThe cooperation with Riel Chemical Co., Ltd. is our most sensible choice. Your team's efficiency, professionalism and innovative spirit are impressive, and we are looking forward to further cooperation in the future! -- Jack Sales manager
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ອາ ລິ ສໄປ ຈົນ ສຸດ ຂີດ, ຂອບ ໃຈ ຫລາຍໆ ທີ່ ມີ ທ່ານ! ບໍ່ ວ່າ ຈະ ເປັນ ການ ສະຫນັບສະຫນູນ ຢ່າງ ເຕັມທີ່ ໃນ ເວລາ ທີ່ ສໍາຄັນ ຫລື ການ ເອົາ ໃຈ ໃສ່ ຢ່າງ ລະມັດລະວັງ ຕໍ່ ລາຍ ລະອຽດ ຂອງ ການ ຮັບ ໃຊ້ ປະຈໍາ ວັນ, ເຮົາ ຮູ້ສຶກ ວ່າ ໄດ້ ຮັບ ຄວາມ ໄວ້ ວາງ ໃຈ. ຂໍ ໃຫ້ ມິດຕະພາບ ຍືນ ຍົງ ຕະຫລອດ ໄປ ແລະ ການ ຮ່ວມ ໄມ້ ຮ່ວມ ມື ຈະ ຍືນ ຍົງ ຕະຫລອດ ໄປ ——[ທີມການຄ້າເຄມີຂອງລາວ]
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Mr. ZhaoWe have been cooperating with Riel Chemical for five years. The product quality has always been perfect and the usage effect is good. Your company's sales manager is also particularly polite
Industrial Grade Ninety Six Percent Stpp Sodium Powder For High Efficiency Water Softening Agent
Place of Origin | Weifang |
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Brand Name | Riel Chemical |
Certification | SGS, ISO9001, CE |
Model Number | 96% |
Minimum Order Quantity | 1 ton |
Price | USD 730~800 FOB |
Packaging Details | 25 kg polyethylene woven bag, moisture-proof, easy to transport |
Delivery Time | 3~5 work day |
Payment Terms | T/T , L/C |
Supply Ability | 50 tons per day |

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xProduct Details
CAS | 7758-29-4 | EINECS | 231-838-7 |
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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 | ||
Highlight | stpp sodium powder,industrial stpp sodium,industrial sodium tripolyphosphate |
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Mode of loading | Maximum load | |
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20 GP no pallet | 20-22 tons | |
20 GP with pallet | 16 tons |
Product Description
Industrial Grade 96% STPP Sodium Powder for High Efficiency Water Softening Agent
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°C |
Solubility | Soluble in water (alkaline solution) |
Technical Specifications
Molecular Formula | Na5P3O10 |
Molecular Weight | 367.86 g/mol |
Standard Compliance | GB/T 9983-2004 |
Quality Parameters
Parameter | Standard Value |
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Sodium Tripolyphosphate Content ≥ | 96.0% |
Phosphorus Pentoxide (P2O5) ≤ | 57.0% |
Water Insoluble ≤ | 0.10% |
Iron ≤ | 0.007% |
pH Value (1% solution) | 9.2-10.0 |
Whiteness ≥ | 90 |


Physical and Chemical Properties
- Appearance: White crystalline or powdery solid
- Form: Anhydrous compound 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)
- Key Property: Strong chelating ability with metal ions (Ca, Mg, Fe)
- Hygroscopicity: Easily absorbs moisture from air


Applications
- Detergents & Cleaners: Water softening, dirt dispersion, alkaline buffering
- Food Processing (E451): Moisture retention, texture improvement, preservation
- Industrial Water Treatment: Scale prevention, corrosion inhibition
- Ceramics & Construction: Slurry dispersant, quality enhancement
- Textile Printing: Dye uniformity, color fastness improvement
- Petroleum Industry: Drilling fluid viscosity control
- Metal Treatment: Surface cleaning, rust prevention
- Paper Industry: Filler dispersant, quality improvement
- Coatings: Stability enhancement, adhesion improvement
- Other: Agriculture (fertilizer additive), pharmaceuticals (stabilizer)

Product Advantages
- Quality & Stability: High purity, batch consistency, premium raw materials
- Eco-Friendly: Clean production, meets environmental regulations
- R&D Innovation: Continuous process improvement, application development
- Diverse Specifications: Various particle sizes, purities, and packaging options
- Market Recognition: Trusted by domestic and international clients
- Cost Efficiency: Large-scale production, competitive pricing
- Global Reach: Exported to Europe, America, and Southeast Asia
Frequently Asked Questions
What is your payment term?
We accept T/T and L/C at sight.
Can you deliver on time?
Yes, we guarantee timely delivery while maintaining top quality standards.
Do you provide free samples?
Yes, free samples are available (customer covers express fee).
Can you offer competitive pricing?
We provide the most competitive prices based on order quantity and specifications.
Can I visit your factory in China?
Yes, we welcome visits to our Weifang facility (airport pickup available).
What if there are quality issues?
Our professional after-sales team promptly resolves any quality concerns.
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