Product form: yellow powder
Product characteristics: Also known as zinc yellow, a light yellow pigment containing zinc chromate. The light resistance is better than that of lead chrome yellow, but the covering and coloring power are slightly lower. Slightly soluble in water, completely soluble in acids or Alkalis. It has the function of anodic protection passivation and cathodic corrosion inhibitor, making it an important anti rust pigment. According to the changes in composition, there is a series of components, ranging from 5ZnO ·CrO3 · 4H2O to 4ZnO · 4CrO3 · K2O · 3H2O.
Chemical category: yellow pigment 4ZnO CrO3.3H2O
Color Index Number :Pigment Yellow 36 (77955)
CAS No 49663-84-5
Technical data:
Chromium trioxide content (calculated as CrO3)% | min 17 | |
Zinc oxide (calculated as ZnO)% | min 60 | max 69 |
Alkali metal content% | max 12 | |
Water soluble chloride content% | max 0.1 | |
Moisture% | max 1 | |
Oil absorption capacity (g/100g) | max 35 | |
Sieve residue (m/m 200 mesh)% | max 3 |
