 |
 Sodium tripolyhosphate STPP
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| Properties: |
It is white powder, chain condensed phosphate |
| Uses: |
additive of detergent, soap synergist, water softening agent, pre-tannage agent, dyeing auxiliary, dispersant, mud control agent of oil well, oily dirty preventing agent of papermaking, catalyst, dispersant of metal and drug, or used as solvent. |
| Technical index: |
Chinese standard GB 9983-88
Index name |
Index ( first grade) |
Sodium tripolyhosphate (Na5P3O10) % ≥ |
90.0 |
P2O5 % ≥ |
56.5 |
Water insoluble matter % ≤ |
0.1 |
Fe % ≤ |
0.015 |
pH (1% solution) |
9.2-10.0 |
Whiteness % ≥ |
80 |
Granularity 1.00mm residue % ≤ |
5.0 |
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