Sodium Tripolyphosphate (Stpp) By Shijiazhuang Tianhua Phosphate Co.,ltd.

We offer our customers a wide range of Sodium Tripolyphosphate (STPP), which are available following Specifications :-
Product: STPP/Sodium Tripolyphosphate
CAS No.:7758-29-4
Hs No.: 2835310000
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Properties:
White power, Melting point 622A 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.
Specification:
Assay Na5P3O10 %94.0 Min.
P2O5 % 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.