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Sodium Tripolyphosphate STPP

付款方法:电汇
规格:Chemical formula: Na5P3O10
Molecular weight: 475.96
Standard executed: Tech grade( GB 9983-2004) Food grade( QB 1034-1991)
CAS Number: 7758-29-4
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, and solubility and hydration heat when dissolving.



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