Sodium Tripolyphosphate (STPP)
CAS No: 7758-29-4
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Apearance: White or colorless crystal powder.
1. Sodium Tripolyphosphate(Industrial Grade)
CAS No: 7758-29-4
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Apearance: White or colorless crystal powder.
1. Sodium Tripolyphosphate(Industrial Grade)
|
Na5P3O10
|
94.0%Min
|
|
P2O5
|
: 57.0%Min
|
|
Water Insoluble Matter
|
0.15%Max
|
|
Iron (Fe)
|
0.012%Max
|
|
PH Value (1% water solution)
|
9.1-10.0
|
|
Whiteness
|
90%Min
|
|
Ignition Loss
|
1.0
|
|
Density (g/cm3)
|
0.35-0.9
|
|
Phase I
|
10-30
|
2. Sodium Tripolyphosphate(Food Grade)
|
Na5P3O10
|
94.0%Min
|
|
P2O5
|
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
|
95%Min
|
|
Density (g/cm3)
|
0.35-0.9
|
|
Phase I
|
10-30
|
3. Sodium Tripolyphosphate(Ceramics Grade)
|
Na5P3O10
|
96.52%Min
|
|
P2O5
|
57.85%Min
|
|
Water Insoluble
|
0.10%Max
|
|
Fe
|
0.007%Max
|
|
PH
|
9.7
|
Usage:
Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc. ; As an oil contamination resistance agent in paper production.
Packing: 20/25Kg wowen plastic bag, 21ton/20FCL.
Storge: Keep in dry and windy conditions.
H. S. CODE: 2835319000