CAS No.: | 7758-29-4 |
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Formula: | Na5o10p3 |
EINECS: | 231-838-7 |
Certification: | CCIC, CIQ, RoHS, ISO |
Purity: | 90%~99% |
Type: | Sodium Tripolyphosphate |
Samples: |
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Customization: |
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Sodium triphosphate (STP, STPP or sodium tripolyphosphate or TPP, ) is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially
Detergents. Environmental problems associated with eutrophication are attributed to its widespreaduse.
Sodium Tripolyphosphate / STPP | ||
Indexes | Industrial Grade | Food Grade |
Assay Na5P3O10 % ≥ | 94.0 | 94.0 |
P2O5 % ≥ | 57.0 | 57.0 |
Water Insoluble Matter %≤ | 0.15 | 0.05 |
Iron(Fe) %≤ | 0.01 | 0.01 |
PH value (1% water solution) | 9.2-10.0 | 9.5-10.0 |
Heavy Metal (as Pb) %≤ | -- | 0.001 |
Arsenic (As) %≤ | -- | 0.0003 |
Fluoride (F) %≤ | -- | 0.003 |
Particle Size Through 16 mesh sieve %≥ Through 35 mesh sieve %≥ Trough 100 mesh sieve %≥ |
95.0 90.0 40.0 |
95.0 90.0 40.0 |
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