Sodium Tripolyphosphate(STPP)
Molecular formula: Na5P3O10
Molecular Weight: 367.86
Standard executed: GB/T9983-2004(technical grade) QB1034-91(food grade)
CAS Number: 7758-29-4
HS Code: 28353110/ 28353190
ISO certificate
Properties:
White powder; Melting point 622oC; Easily soluble in water; It has got salient chelating capacity to ions of Ca and Mg etc. And can soften hard water to make suspension solution become into clear solution; It has got weak alkalinity but no corrosiveness. It is a surfactant, and has got outstanding emulsification to lubricants and fat. It has different bulk density, I. E. Low density 0.35-0.5g/cm3, medium density 0.51-0.65g/cm3 and high density 0.66-0.9g/cm3. This product has two crystalline forms, namely Type I (high temperature type) and Type II (low temperature type). The chemical properties of the two types are the same, and the difference between them lies in the thermo stability, hygroscopic, solubility and hydration heat when dissolving
Usage:
Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, foodstuff industry, and poultry process.
Spec:
Molecular formula: Na5P3O10
Molecular Weight: 367.86
Standard executed: GB/T9983-2004(technical grade) QB1034-91(food grade)
CAS Number: 7758-29-4
HS Code: 28353110/ 28353190
ISO certificate
Properties:
White powder; Melting point 622oC; Easily soluble in water; It has got salient chelating capacity to ions of Ca and Mg etc. And can soften hard water to make suspension solution become into clear solution; It has got weak alkalinity but no corrosiveness. It is a surfactant, and has got outstanding emulsification to lubricants and fat. It has different bulk density, I. E. Low density 0.35-0.5g/cm3, medium density 0.51-0.65g/cm3 and high density 0.66-0.9g/cm3. This product has two crystalline forms, namely Type I (high temperature type) and Type II (low temperature type). The chemical properties of the two types are the same, and the difference between them lies in the thermo stability, hygroscopic, solubility and hydration heat when dissolving
Usage:
Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, foodstuff industry, and poultry process.
Spec:
|
Indexes |
Industrial Grade
|
Food Grade
|
|
Na 5 P 3 O 10
|
94.0%Min
|
94.0%Min
|
|
P 2 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
|
/
|
|
density (g/cm 3 )
|
0.35-0.9
|
0.35-0.9
|
|
Phase I
|
10-30
|
10-30
|