Back Chromium Chromium is a silvery white metal with a bluish tinge. It has been used to coat the inside of barrels of large artillery pieces because it is able to withstand the hot powder gases. It becomes coated with a thin oxide layer which helps with corrosion protection. Chromium is commonly used to plate brass and steel objects, such as plumbing fixtures. Chromium is used in the production of steel alloys.
Potassium dichromate is used widely as a bleach for photographic development.
Spin Natural Abund.