Chrome Green

cas no: 1308-38-9

EINECS : 215-160-9

Chromium green generally refers to chromium trioxide. Chromium oxide is an inorganic substance with the chemical formula Cr2O3. It is light green to dark green fine hexagonal crystal. It turns brown when hot and green after cold. The crystal is extremely hard and stable, and there is no change even when hydrogen is introduced under red heat. Soluble in heated potassium bromate solution, slightly soluble in acids and bases, almost insoluble in water, ethanol and acetone. And irritating.

1. Lead Chrome Green is the main coloring pigment in the coating industry, and most green paints are prepared with this pigment. In addition, it is also used in paint and plastics. Its application range is very similar to lead chrome yellow. Because the composition contains chrome yellow, pay attention to the toxicity of lead in application. Lead chrome green contains iron blue and the oxidant lead chromate. Therefore, when the dust meets Mars, it may spontaneously ignite. It should not be careless when drying and crushing. The burned lead chrome green completely loses the characteristics of green pigment and changes into dark brown yellow material. In addition, when making nitrocellulose lacquer, the rolling process is not directly rolled with lead chrome green, but after the lead chrome green is grind into the pulp, the process is prevented from burning at the time of rolling.

2. Used in metallurgy, ceramics, refractories, pigment raw materials and organic synthesis catalysts.

3. Used as analytical reagent and catalyst.

4. It is used as a filler for coloring, wear resistance and corrosion resistance of adhesives and sealants. It can also be used as a colorant for enamel, ceramics, artificial leather and building materials; Organic chemical synthesis catalyst; Sun resistant coating and special ink for printing paper money.

5. as a coloring agent for cosmetics, it is mainly used for eye cosmetics, but not for oral and lip cosmetics. It is not recommended for facial cosmetics and nail polish.

6. Chromium trioxide is one of the main components of silver plating dipping solution. The newly prepared chromium trioxide is an important raw material for preparing chromium fluoride and chromium bromide.