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Specifications

Sodium Tripolyphosphate(STPP)       Industrial Grade
Specification:
 Na5P3O10:       94.0%Min
P2 O 5:  57.0%Min
Water Insoluble Matter: 15%Max
Iron(Fe):       0.015%Max
PH value (1% water solution):  9.2-10.0
Whiteness:  92%Min
Ignition loss:        1.0
density (g/cm3):  0.35-0.9
Phase I:        10-30
Packing: 25kg/bag, 20MT/20FCL
 
 
Sodium Tripolyphosphate(STPP)       Food Grade
Specification:
 Na5P3O10        94.0%Min
P2 O 5         57.0%Min
Water Insoluble Matter     0.04%Max
Iron(Fe)        0.006%Max
PH value (1% water solution)   9.5-10.0
Heavy Metal (as Pb)   0.001%Max
Arsenic (As)       0.0003%Max
Fluoride (F) 0.003%Max
Whiteness    92%Min
density (g/cm3)   0.35-0.9
Phase I 10-30
Packing: 25kg/bag, 20MT/20FCL