Specification :

Product: Sodium Tripolyphosphate( STPP)
CAS No.: 7758-29-4
Hs No.: 2835310000
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Properties:
White power, 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.
Application:
Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production.
Specification:
ITEMS SPECIFICATION
Assay Na5P3O10 94.0% Min.
P2 O 5 % 57.0 Min.
Water Insoluble Matter 0.10% Max.
Iron( Fe) 0.015% Min.
PH value ( 1% water solution) 9.5-10.0
Whiteness 90% Min.