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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. -
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. -
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! -
محمد لاگولدشریک خوب، پیدا کردن چنین تامین کننده ای عالی است، برای شما آرزوی موفقیت دارم -
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 -
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] -
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
CAS 7758-29-4 Na5P3O10 Sodium Tripolyphosphate For Industry Stpp Powder
| Place of Origin | Weifang |
|---|---|
| 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 |
|---|---|---|---|
| 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 | H2O: May Be Clear To Slightly Hazy | Density | 2.52 G/cm³ |
| Highlight | Na5P3O10 Sodium Tripolyphosphate,Industry stpp phosphate,Industry cas no 7758 29 4 |
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| Mode of loading | Maximum load | |
|---|---|---|
| 20 GP no pallet | 20-22 tons | |
| 20 GP with pallet | 16 tons |
Product Description
Sodium Tripolyphosphate (STPP) Industrial Grade - CAS 7758-29-4
Key Specifications
| Attribute | Value |
|---|---|
| CAS Number | 7758-29-4 |
| EINECS | 231-838-7 |
| Appearance | White particles or powder |
| Molecular Formula | Na5P3O10 |
| Molecular Weight | 367.86 g/mol |
| Melting Point | 622°C |
| Density | 2.52 g/cm³ |
| Solubility | Highly soluble in water (14g/100mL at 20°C) |
| Shelf Life | Two years |
Quality Standards
Our industrial grade Sodium Tripolyphosphate meets GB/T 9983-2004 standards with the following specifications:
| Parameter | Standard Value |
|---|---|
| Main Content (STPP) | ≥ 96.0% |
| Phosphorus Pentoxide (P2O5) | ≤ 57.0% |
| Water Insoluble | ≤ 0.10% |
| Iron Content | ≤ 0.007% |
| pH Value (1% solution) | 9.2-10.0 |
| Whiteness | ≥ 90 |
Physical and Chemical Properties
- Form: White crystalline or powdery solid (anhydrous or hexahydrate)
- Solubility: Highly soluble in water (14g/100mL at 20°C, 30g/100mL at 60°C)
- pH: Alkaline (9.5-10.5 for 1% aqueous solution)
- Decomposition: At 622°C into sodium pyrophosphate and sodium metaphosphate
- Hygroscopicity: Strong moisture absorption tendency
- Chelating Ability: Forms stable complexes with metal ions (Ca, Mg, Fe)
Industrial Applications
- Detergent Industry: Key ingredient for water softening and cleaning enhancement
- Food Processing: Water retention agent for meat and seafood products
- Water Treatment: Corrosion and scale inhibitor for industrial systems
- Ceramic Production: Grinding aid and dispersant for raw materials
- Textile Processing: Washing aid and bleaching stabilizer
- Paper Manufacturing: Fiber dispersant and retention agent
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 with years of experience and guarantee timely delivery while maintaining top quality.
Do you provide free samples?
Yes, we provide free samples with the customer responsible for express shipping 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, we welcome visits to our facility in Weifang, China, with airport pickup/drop-off service provided.
What if there is a quality problem?
Our professional after-sales team promptly addresses all quality concerns.
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