Molecular formula: Zn3(PO4)2·2H2O
Molecular weight: 422
Appearance: White powder
Properties: Zinc phosphate is easily deliquescent, insoluble in water and alcohol, and easily soluble in inorganic acids and sodium hydroxide solutions.
Usage: Zinc phosphate can effectively replace zinc chrome anti-rust pigments and is an ideal new product for anti-rust pigments. Widely used as anti-rust paint in terms of ships, automobiles, industrial machinery, light metals, household appliances, and metal containers for food.
Item | Indicator | |||
409 | 409-1 | SZP-10 | SZP-20 | |
Color | White powder | White powder | White powder | White powder |
zinc content（Zn） % | 45-49 | - | 50.5-52.5 | 49.5--52.5 |
Phosphate radical content % | 44-48 | - | 47.5-49.5 | 47.0--50.0 |
Zinc phosphate content % | - | ≥45 | - | - |
Oil absorption % | 15-25 | ≤40 | 20-30 | 20--30 |
105℃ volatile matter % ≤ | 1 | 1 | - | - |
Lead content（Pb） % ≤ | 0.005 | - | 0.005 | 0.005 |
Cadmium content（Cd） % ≤ | 0.005 | - | 0.002 | 0.002 |
Residue on sieve % ≤ | 0.2 | 0.2 | 0.05 | 0.05 |
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