Sodium Tripolyphosphate (STPP,pentasodium triphosphate,sodium triphosphate) is used in food industry, detergent industry, metal industry and pharmaceutical industry.
Sodium Tripolyphosphat
Title: Sodium Tripolyphosphate
Synonyms: STPP; pentasodium triphosphate; sodium triphosphate
CAS #: 7758-29-4
Formula: Na5P3O10
Molecular: 367.86 |
|
Sodium Tripolyphosphate datasheet
Items |
Tech grade |
Food grade |
| Assay % ≥ |
94.0 |
95.0 |
| P2O5 % ≥ |
57.0 ± 1.0 |
57.0 |
| Water insoluble % ≤ |
0.1 |
0.05 |
| Fe % ≤ |
0.015 |
0.02 |
| Whiteness % ≥ |
85 |
88 |
| F % ≤ |
- |
0.001 |
| As % ≤ |
- |
0.0003 |
| Heavy metal (as Pb) % ≤ |
- |
0.001 |
| Cl % ≤ |
- |
0.01 |
| SO4 % ≤ |
- |
0.4 |
| pH(1% solution) |
9.2 ～ 10.0 |
9.5 ～ 10.0 |
Sodium Tripolyphosphate descriptions
Sodium Tripolyphosphate is white microdot powder with luster, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.
Sodium Tripolyphosphate Applications
Sodium Tripolyphosphate is 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.
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Remarks: Sodium Tripolyphosphate (STPP,pentasodium triphosphate,sodium triphosphate) is used in food industry, detergent industry, metal industry and pharmaceutical industry.
