The Chrome Chemical is slang for Chromium, one of the 92 naturally occurring chemical elements. Chrome is a metal, but it is not useful as a solid, pure substance. It is a hard, corrosion-resistant transition metal. Chromium oxide green, also known as chromium sesquioxide or chromia , is one of four oxides of chromium, chemical formula Cr 2 O 3. It is commonly called chrome green when used as a pigment. The chemical is made in various types for use in a number of industries as per the need. The Chrome Chemical is very effective.