Sodium tripolyphosphate
Molecular Formula: Na5O10P3
CAS No.: 7758-29-4
Sodium tripolyphosphate (STPP) has a wide range of applications, primarily as a water softener and builder in detergents, as a food additive, and in various industrial processes. In detergents, STPP enhances cleaning power by softening water and preventing the redeposition of dirt and stains. In the food industry, it acts as a preservative, emulsifier, and moisture retention agent, improving the texture and appearance of foods like meat and seafood. Industrially, STPP is used in paper production, ceramics, leather tanning, and other applications.
Items |
Specification |
Results |
Total phosphate as P2O5%≥ |
94% |
94.5% |
The activity of phosphate as P2O5%≥ |
57% |
57.3% |
PH (1% solution) |
9.2-10.0 |
9.57 |
Solubility |
Conformity |
Conformity |
Iron (Fe) %≤ |
0.007 |
0.0062 |
Water Insoluble %≤ |
0.10 |
0.098 |
Particle size 1.00 mm test sieve sieve residue %≤ |
5.0 |
5.0 |
Whiteness%≥ |
90 |
90 |
Usage:
Chiefly used as a water softener,sequestering agent,and defloculating agent in detergent industry.Also used in ceramic,mine,petroleum and paper manufacturing industries.
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