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Technical Specifications:
| Specifications | Superior quality | First-grade | Qualified products |
| Sodium Tripolyphosphate (as Na5P3O10)% ≥ | 94 | 94 | 85 |
| Phosphorus Pentoxide (as P2O5)% ≥ | 57.0 | 57 | 55.0 |
| Water insoluble matter % ≤ | 0.10 | 0.10 | 0.15 |
| Fe% ≤ | 0.007 | 0.015 | 0.030 |
| PH value | 9.2--10.0 | ||
| Whiteness % ≥ | 90 | 80 | 70 |
| Granularity (tailover through 1.00mm test sieve)% ≤ | 5.0 | ||
Properties:
white powder, apparent density:0.35-0.90g/ml, melting point: 622°C, easily dissolving in water; water solution is alkaline(PH value of 1% solution is 9.7); can hydrolyze into phosphate in water, has good ability in complexing metal ions,; can be used to soften water; has some surfactant properties.
Application:
mainly used as syndet adjuvant, soap synergist and prevent bar soap from oiling off and blooming; has strong emulsification on lubricant and oils and fats, can be used to adjust the PH value of buffer soap solution; can be used as water softener for industrial water, pretanningagent and dyeing adjuvant; drilling mud dispersant; dispersant in preparing suspension in paint, kaolinite, magnesium oxide, calcium carbonate etc.; oil-proofing agent and antifoulant in paper industry.
Packaging:
n.w.25kgs plastic-lined woven bags.
stpp sodium tripolyphosphate 94%
