Chromium compounds are chemical substances that contain the element chromium, which is a transition metal found in group 6 of the periodic table. These compounds can exist in various oxidation states, with chromium(III) and chromium(VI) being the most common. They are used in a variety of applications, including pigments, metal plating, and as catalysts in chemical reactions. Many chromium compounds are known for their vibrant colors, making them popular in dyes and paints. However, some forms, particularly chromium(VI), are toxic and can pose health risks, leading to regulations on their use in certain industries. Proper handling and disposal are essential to minimize environmental and health impacts.