Sodium Tripolyphosphate (Stpp) By Shijiazhuang Youyao Copper Import & Export Co., Ltd

We are offering our customers a wide range of Sodium Tripolyphosphate (STPP), which are available following Specifications :-
CAS No: 7758-29-4
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Melting Point: 622a
Appearance: White or colorless crystal powder.
1. Sodium Tripolyphosphate(Industrial Grade)
1) Na5P3O10: 94.0%Min
2) P2O5: 57.0%Min
3) Water Insoluble Matter: 0.15%Max
4) Iron (Fe): 0.012%Max
5) PH Value (1% water solution): 9.1-10.0
6) Whiteness: 92%Min
7) Ignition Loss: 1.0
8) Density (g/cm3): 0.35-0.9
9) Phase I: 10-30
2.Sodium Tripolyphosphate(Food Grade)
1) Na5P3O10: 94.0%Min
2) P2O5: 57.0%Min
3) Water Insoluble Matter: 0.04%Max
4) Iron(Fe): 0.006%Max
5) PH Value(1% water solution): 9.5-10.0
6)Heavy Metal(as Pb): 0.001%Max
7)Arsenic(As): 0.0003%Max
8)Fluoride(F): 0.003%Max
9) Whiteness: 95%Min
10) Density (g/cm3): 0.35-0.9
11) Phase I: 10-30
3. Sodium Tripolyphosphate(Ceramics Grade)
1) Na5P3O10: 96.52%Min
2) P2O5: 57.85%Min
3) Water Insoluble: 0.10%Max
4) Fe: 0.007%Max
5) 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: 25kg plastic bag with PE inside and PP woven outside; 25MT/20a FCL
Storage: Keep in dry and windy conditions.