STPP,sodium tripolyphosphate

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STPP,sodium tripolyphosphate
Posting date : Sep 29, 2011
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28-
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Classification: Phosphate CAS No.: 7758-29-4 MF: Na5P3O10 EINECS No.: 231-838-7 Place of Origin: Shaanxi China (Mainland) Purity: 94% & 96% Brand Name:dongtaiyuan Chemical formula: Na5P3O10 Molecular weight: 367.86 Appearance: white powder Package:25kgs / bag,22t / 20'FCL Properties: White powder; Melting point 622°C; Easily soluble in water; It has got salient chelating capacity to ions of Ca and Mg etc. and can soften hard water to make suspension solution become into clear solution; It has got weak alkalinity but no corrosiveness. It is a surfactant, and has got outstanding emulsification to lubricants and fat. It has different bulk density, i.e. low density 0.35-0.5g/cm3, medium density 0.51-0.65g/cm3 and high density 0.66-0.9g/cm3. This product has two crystalline forms, namely Type I (high temperature type) and Type II (low temperature type). The chemical properties of the two types are the same, and the difference between them lies in the thermostability, hygroscopicity, solubility and hydration heat when dissolving. Storage: Store at a cool, dry and well ventilated place. The package must be moistureproof and well sealed. Handle with care. During transportation, please avoid rains and strong sunshine. In case of fire, please use water,sandy soil or all kinds of fire extinguishers to quench it.

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