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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
96% Sodium Tripolyphosphate STPP CAS 7758-29-4 For Increase The Treatment Rate Of Industrial Wastewater
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 | Density | 2.52 G/cm³ |
Security Description | S24/25;S26;S36 | ||
Highlight | sodium tripolyphosphate stpp cas 7758-29-4,industrial sodium tripolyphosphate stpp,industrial sodium tri poly phosphate |
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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
96% Sodium Tripolyphosphate STPP CAS 7758-29-4 For Industrial Wastewater Treatment
Product Attributes
Attribute | Value |
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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 |
Density | 2.52 g/cm³ |
Security description | S24/25;S26;S36 |
Product Specifications
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade: CAS 7758-29-4
Standard: GB/T 9983-2004
Quality Parameter | Standard Value |
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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
- 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)

Future Development of Sodium Tripolyphosphate
Key Development Directions
- Environmentally friendly alternatives development
- High value-added applications in new energy and catalysts
- Circular economy model implementation
- Production process optimization for energy efficiency
- Exploration of new applications in biomedicine
Market Analysis in Developing Countries
- Detergent Industry: Growing demand due to population growth and urbanization
- Food Industry: Increasing use as water retaining agent in processed foods
- Industrial Water Treatment: Stable demand for scale and corrosion prevention
- Growth Potential: Supported by industrialization and policy support
- Challenges: Environmental pressure and substitute competition


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?
Yes, you're welcome to visit our facility in Weifang, China. We provide airport pickup/dropoff service.
What if there is a quality problem?
Our professional after-sales team promptly addresses all quality concerns.

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