Chromium oxide is used as an ingredient in paints to obtain

Chromium oxide, specifically chromium(III) oxide (Cr2O3), is a widely used inorganic pigment in the paint and coatings industry to obtain a green colour. It is frequently referred to by synonyms such as "chrome green," "chromia," or "green oxide of chromium". This pigment is valued for its exceptional stability, being lightfast, weather-resistant, and chemically inert in both acidic and alkaline environments. Unlike "chrome green" blends which may contain lead chromate and Prussian blue, pure chromium oxide is a single-component pigment that produces a distinct, opaque, and permanent green hue. Historically used in porcelain enamels since the early 19th century, it remains a staple in artistic and industrial paints due to its thermal stability and insoluble nature.