CAS : 64-18-6 HS Code : 2915-110000 Packing : 25kgs/35kgs/250kgs/IBC Drum/ISO Tank Application Formic acid is an organic substance with a chemical formula of HCOOH and a molecular weight of 46.03. It is commonly known as formic acid and is the simplest carboxylic acid. Colorless liquid with pungent odor. Weak electrolyte, strong acid, corrosive, can stimulate skin to blister. Exist in the secretions of bees, some ants and caterpillars. It is an organic chemical raw material, also used as a disinfectant and preservative.