Riel Chemical Co., Ltd.
| 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 |
| Sensibility | Hygroscopicity |
| Smell | Odorless |
| 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 |
| Brand Name | Riel Chemical |
| Model Number | 96% |
| Certification | SGS, ISO9001, CE |
| Place of Origin | Weifang |
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Product Specification
| 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 |
| Sensibility | Hygroscopicity | Smell | Odorless |
| 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 |
| Brand Name | Riel Chemical | Model Number | 96% |
| Certification | SGS, ISO9001, CE | Place of Origin | Weifang |
| High Light | SGS Sodium Tripolyphosphate STPP ，Sodium Tripolyphosphate STPP White ，Sodium Tripolyphosphate STPP Industrial Grade | ||
| 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 | H2O: may be clear to slightly hazy |
| Density | 2.52 g/cm³ |
| Sensibility | Hygroscopicity |
| Smell | Odorless |
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 |
Chemical Formula: Na₅P₃O₁₀
Molecular Weight: 367.86 g/mol
Appearance: White crystalline or powdery solid.
Form: Typically exists as an anhydrous compound (Na₅P₃O₁₀) or a hexahydrate (Na₅P₃O₁₀*6H₂O).
Water Solubility: Highly soluble in water, with solubility increasing with temperature. At 20°C, solubility is approximately 14 g/100 mL. At 60°C, solubility is approximately 30 g/100 mL.
Other Solvent: Insoluble in organic solvents (e.g., ethanol).
Aqueous Solution pH: The pH of a 1% aqueous solution is approximately 9.5-10.5, making it alkaline.
Decomposition Temperature: Decomposes at high temperatures (around 622°C) into sodium pyrophosphate (Na₄P₂O₇) and sodium metaphosphate (NaPO₃).
Hydrate Stability: The hexahydrate tends to effloresce in dry air, losing its water of crystallization.
Property: Strong hygroscopicity; easily absorbs moisture from the air and may form clumps.
Property: STPP has strong chelating ability, forming stable soluble complexes with metal ions such as calcium, magnesium, and iron in water.
Application: This property makes it highly valuable in water treatment, detergents, and processing.
The growth prospects of sodium tripolyphosphate (STPP) in the Americas are influenced by several key factors:
Future outlook: Short-term demand remains stable, but long-term market share may decline with environmental requirements.
We can accept T/T and L/C at sight as payment term.
Of course! We specialize in this line for many years, with many customers choosing us because we consistently deliver on time while maintaining top quality.
Yes, we can provide free samples. You only need to cover the express fee.
We always prioritize customer benefits. Price is negotiable under different conditions, and we assure you the most competitive pricing.
Sure. You are very welcome to visit our company in Weifang, China. We will arrange airport pickup and drop-off at Weifang Airport.
We have a professional after-sales service team ready to promptly address any issues.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2005
Total Annual:
4500000-5000000
Employee Number:
>121
Ecer Certification：
Verified Supplier
Riel Chemicals – Leading Enterprise in Basic Chemical Manufacturing Who we are ? Established in 2005 and headquartered in Weifang City, Shandong Province—a hub of China’s chemical industry—Riel Chemicals is a national high-tech enterprise specializing in the R&D, prod... Riel Chemicals – Leading Enterprise in Basic Chemical Manufacturing Who we are ? Established in 2005 and headquartered in Weifang City, Shandong Province—a hub of China’s chemical industry—Riel Chemicals is a national high-tech enterprise specializing in the R&D, prod...
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