Product: Sodium Tripolyphosphate (STPP)
Chemical Formula: Na5P3O10
CAS No: 7758-29-4
Appearance: White powder or particles
Chemical Formula: Na5P3O10
CAS No: 7758-29-4
Appearance: White powder or particles
Packing: 25 or 50 kgs in woven bag lined with plastic bag, 20MT/20’ FCL.
Usage: The water treatment, the food modifier, the water keeping agent.
Specifications fo Sodium Tripolyphosphate:
|
Item
|
Food Grade
|
Industrial Grade
|
|
P (as P2O5)
|
57.0 %min
|
57.0 min
|
|
Assay
|
94 % min
|
94 min
|
|
PH value
|
9.5-10.0
|
9.2-10.0
|
|
Water insoluble
|
0.05 %max
|
0.1max
|
|
Heavy metal (as Pb)
|
0.001% max
|
-
|
|
Iron as Fe
|
0.01% max
|
0.015max
|
|
Chloride (as NaCl)
|
0.025% max
|
-
|
|
Fluoride (F)
|
0.003%max
|
-
|
|
Arsenic as As
|
0.003% max
|
-
|