Formates are chemical compounds that contain the formate ion, which is derived from formic acid. The formate ion has the formula HCOO⁻ and consists of one carbon atom, two oxygen atoms, and one hydrogen atom. Formates can be found in various salts and esters, and they play a role in several biological and industrial processes. In nature, formates are produced by certain bacteria during the breakdown of organic matter. They are also used in various applications, including as preservatives in food and as intermediates in chemical synthesis. Additionally, formates can be involved in energy production, particularly in fuel cells, where they serve as potential energy carriers.