Detailed Product Description
Product: Sodium Tripolyphosphate(STPP)(tripolyphosphate)
Chemical formula:Na5P3O10
standard executed:GB/1034-91
Molecular weight:367.86
Properties: White powder, surface density: 0.35-0.9g/cm3, Boiling Point: 1000 C
melting point:622℃, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.
Specification:
|
Indexes |
Industrial Grade |
Food Grade |
|
Na5P3O10 |
94.0%Min |
94.0%Min |
|
P2 O 5 |
57.0%Min |
57.0%Min |
|
Water Insoluble Matter |
0.15%Max |
0.04%Max |
|
Iron(Fe) |
0.015%Max |
0.006%Max |
|
PH value (1% water solution) |
9.2-10.0 |
9.5-10.0 |
|
Heavy Metal (as Pb) |
/ |
0.001%Max |
|
Arsenic (As) |
/ |
0.0003%Max |
|
Fluoride (F) |
/ |
0.003%Max |
|
Whiteness |
92%Min |
92%Min |
|
Ignition loss |
1.0 |
/ |
|
density (g/cm3) |
0.35-0.9 |
0.35-0.9 |
|
Phase I |
10-30 |
10-30 |
Packing:
In 25Kg or 50 Kg or 1000 Kg net WPP/PE bags.
Application: mainly used as synthetic detergent, water-softening agent, dispersant of drilling mud and mineral floating, catalyst of organic synthesis