| Sodium Tripolyphosphate |
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| Sodium tripolyphosphate is a kind of amorphous water-soluble linear polyphosphate, which ends with na2po4. Its chemical formula is na5p3o10, with relative molecular weight of 367.86. It is commonly used in food as water retention agent, quality improver, pH regulator and metal chelator.
Sodium tripolyphosphate has the functions of chelating, suspending, dispersing, dissolving, emulsifying and pH buffering. It can be used as the main auxiliary agent of synthetic detergent, industrial water softener, leather pre tanning agent, dyeing assistant, organic synthesis catalyst, dispersant for pharmaceutical industry and food additive. In addition to the export of STPP, domestic STPP consumption is mainly concentrated in detergent industry, food, ceramics, etc.
In water treatment, it is mainly used as softener. Sodium tripolyphosphate has the performance of ion exchanger. It can form soluble complex na3mp3o10 (M is metal ion) with calcium, magnesium and iron ions in water. It can shield hard salt of calcium and magnesium and prevent the formation of calcium and magnesium scale. In addition, it has surface activity and strong buffer effect The buffer effect is the best in the range of ph4-14. |
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| No. |
ITEMS |
SPECIFICATION |
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| 1. |
Appearance |
White powder or crystalline particles or colorless crystals |
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| 2. |
Assay（Na5P3O10）,w/% |
≥85.0% |
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| 3. |
Total phosphate (P2O5),w/% |
56.0~58.0 |
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| 4. |
Insoluble Substances , w/% |
≤0.1% |
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| 5. |
Heavy metals(Pb) |
≤10 ppm |
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| 6. |
As |
≤3 ppm |
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| 7. |
Pb |
≤4 ppm |
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| 8. |
Fluoride（F） |
≤50 ppm |
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| Application: |
In the food industry, it is used for the quality improver of canned ham, juice beverage, dairy products, soybean milk, etc. it is mainly used for the tenderization of canned ham and the softening of soybean skin in canned broad bean. It can also be used as softener and thickener. |
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| Packaging: |
25kg bag or as customer’s requirement |
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| Storage condition: |
It should be stored in a dry and ventilated warehouse to avoid moisture and sunlight. |
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| Shelf life: |
2 years |
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Qingdao Nalong Dingsheng Commerce Co., Ltd. (NDCC) is a global provider of food additives and ingredients specializing in serving the demand for raw materials needed for finished food products. Our clients trust us to provide quality ingredients every single time. We mainly focus on top quality products and excellent supply chain management, we are very strong and active in Vitamins, Thickeners, Proteins, Acidulants, Preservatives, Antioxidants, Sweeteners, Phosphates, Flavorings & Aromas, Plant Extracts, Amino Acids, Colorants, Emulsifiers, Nutritional Supplements.
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