| ≥1 piece |
Sodium Tripolyphosphate
STPP cas 7758-29-4
food grade tech grade
STANDARD GB1034-91 VALIDITY Two Years
ITEMS SPECIFICATION RESULTS
Assay Na5P3O10 % 94.0 Min. 95.56
P2 O 5 % 56.5 Min. 57.08
Water Insoluble Matter % 0.05 Max. 0.03
Iron(Fe) % 100ppm Max. 17ppm
PH value (1% water solution) 9.5-10.0 9.72
Heavy Metal (as Pb) % 10ppm Max. 2ppm
Arsenic (As) % 3ppm Max. 2ppm
Fluoride (F) % 30ppm Max. 9ppm
Whiteness % 90 Min. 91.12
density 0.65 to 0.9 0.81