Formic acid (chemical formula HCOOH, molecular formula CH2O2, molecular weight 46.03), the name of formic acid is the simplest carboxylic acid. A colorless pungent liquid. Weak electrolyte, melting point 8.6 DEG C, boiling point of 100.8 DEG C. Acid is very strong, corrosive, can stimulate skin blistering. In the secretions of bees, some ants, and caterpillars. It is an organic chemical raw material, also used as disinfectant and antiseptic.