sodium tripolyphosphate
STPP
CAS NO:7758-29-4

Assay Na5P3O10   95.56
P2 O 5 %  57.08
Water Insoluble Matter %  0.03
Iron(Fe) %  100ppm
PH value (1% water solution)  9.72
Heavy Metal (as Pb) % 0.0008
Arsenic (As) %  0.0003
Fluoride (F) %  0.002
Whiteness %  91.12
density  0.81

Hangzhou onicon chemical co limited , dedicated in producing APIs,cosmetic & food ingredients,as a manufacturing and exporting base on the chemical pharmaceuticals industry, Hangzhou Onicon Chemical co.,ltd , is in a leading position in the manufacturing technology and capacity for pharma-chemicals .