... quality and competitive price. CAS: 64-18-6 Formic acid is a colorless liquid having a highly pungent, penetrating odor ... agent, Neutralizer etc.3, Printing and Dyeing Industry :Acid Stains etc.4, Chemical industry:Methane amide, DMF, Age resister, etc.5, Rubber ... industry:Coagulation, etc.6, Steel industry:Acid cleaning of steel ...