| Customization: | Available |
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| CAS No.: | 7758-16-9 |
| Formula: | Nah2p2o7 |
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1.Chemical name:Disodium Dihydrogen Pyrophosphate Sodium Acid Pyrophosphate
2.M. F.: Na2H2P2O7
3.M. W. : 221.94
4.Physical properties: Monoclinic, white crystalline powder. Density 1.86. Practically insoluble in alcohol, soluble in water. Hydrolyzes to orthophosphate on heating in acid medium. Hygroscopic, forms hexahydrate in damp air. Decomposes to metaphosphate at above 220 degree centigrade.
| Specification | GB25557-2010 | FCC VII |
| Assay(Na2H2P2O7),w/% | 93.0-100.5 | 93.0-100.5 |
| Arsenic(As),mg/kg ≤ | 3 | 3 |
| Fluoride(F),mg/kg ≤ | 50 | 50 |
| Heavy Metals (Pb),mg/kg ≤ | 10 | ---- |
| Insoluble Substances , w/% ≤ | 1.0 | 1.0 |
| Lead(Pb),mg/kg ≤ | 2 | 2 |
| pH Value | 4.0±0.5 | ---- |
SAPP is used as a buffering agent in the food industry, helping to regulate pH levels and prevent spoilage. It is often used in canned foods, dairy products, and meat products to help preserve freshness and extend shelf life.
As an emulsifier, SAPP helps to blend ingredients that would otherwise separate, such as oil and water. It is often used in salad dressings, sauces, and other processed foods to improve texture and consistency.
SAPP is also used as a sequestrant in the food industry, helping to bind and remove metal ions that can cause discoloration or spoilage. It is often used in canned fruits and vegetables, as well as in seafood products, to help maintain color and freshness.
White crystalline powder
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