Sodium Tripolyphosphate (STPP)

Product Description
Product Name Sodium Tripolyphosphate (STPP) Tech Grade
H. S. Code 28353190
CAS No. 7758-29-4
Molecular Formula Na5P3O10
Molecular wt 367.86
Production standard GB/T9983-88
Index Request
Na5P3O10 content (purity) % ÿ?94.00
P2O5 content % ÿ?56
Fe Content ÿ?70 ppm

Water Insoluble % ÿ?0.10
Bulk Density g/ml 0.6 ~0.9
Phase I content % 5~40
Whiteness % 85 min
pH value (1% water solution) 9.2 ~10.0
Loss on drying (500C ) %
Residue on % 18 mesh 20 mesh 40 mesh 100 mesh
Hydration speed (R. O. H) 1 min. 5 min.
Volatile matter (105 C) %
Appearance white powder
Packing 25/1000/1100kg bags, PP bag with PE liner, 20~25mt/20FCL

Product Name Sodium Tripolyphosphate (STPP) Tech Grade
H.S.Code 28353190
CAS No. 7758-29-4
Molecular Formula Na 5P3O10
Molecular wt 367.86
Production standard GB/T9983-88
Index Request
Na 5P3O10 content (purity) % ÿ?94.00
P 2O5 content % ÿ?56
Fe Content ÿ?70 ppm
Water Insoluble % ÿ?0.10
Bulk Density g/ml 0.6 ~0.9
Phase I content % 5~40
Whiteness % 85 min
pH value (1% water solution) 9.2 ~10.0
Loss on drying (500C ) %
Residue on % 18 mesh
20 mesh
40 mesh
100 mesh
Hydration speed (R.O.H) 1 min.
5 min.
Volatile matter (105 C) %
Appearance white powder
Packing 25/1000/1100kg bags, PP bag with PE liner, 20~25mt/20fcl