1.Carboxylic Acid 2.molecular formula:HCOOH 3.Cas no.:64-18-6 4.Molecular Weight ... : Tanning agent, Deliming agent, Neutralizer etc.3, Printing and Dyeing Industry :Acid Stains etc.4, Chemical industry:Methane amide, ... .5, Rubber industry:Coagulation, etc.6, Steel industry:Acid cleaning of steel production, etc. 7, Paper industry:Pulp ... MaxResidue0.02% MaxColor (Pt-Co),Hazen Units20 Max Carboxylic Acid