Formic acid, also known as formic acid. Ants and bees secrete fluid secretions containing formic acid, had it prepared formic acid distillation ants, it has this name. Colorless pungent odor of formic acid and corrosive, human skin will blister swelling after contact. Melting point of 8.4 ℃, the boiling point of 100.8 ℃. Due to the special structure of formic acid, a hydrogen atom and its carboxyl directly connected. Can also be seen as a hydroxyl formaldehyde. Thus both formic acid and formaldehyde and properties. In the chemical industry, formic acid is used in rubber, pharmaceuticals, dyes, leather types of industries.