Molecular formula: AlH2P3O10
Molecular weight: 318
Appearance: White powder
Properties: Aluminum tripolyphosphate is insoluble in water, non-toxic, and has good thermal stability.
Usage: Aluminum tripolyphosphate anti-rust pigment can be used in combination with other anti-rust pigments and fillers. It is applied in various anti-corrosion coatings. It can also be used in industries such as flame-retardant materials, building materials, and water treatment.
Item | Indicator | ||
SAP-I | SAP-II | SAP-III | |
Zinc oxide | 15-30 | 20-25 | 25-30 |
Aluminum oxide | 13-20 | 11-14 | 9.5-13.5 |
Silicon dioxide | 10-15 | - | 10-15 |
Phosphorus pentoxide | 35-40 | 48-52 | 35-42 |
Oil absorption | 35-45 | 35-45 | 30-45 |
PH value | 6-7 | 6-7 | 5.5-7.0 |
Residue on sieve (325 mesh) | 0-0.5 | 0-0.5 | 0-0.5 |
Whiteness | ≥90 | ≥90 | ≥90 |
Appearance | White powder | White powder | White powder |
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