... .03 CAS No.: 64-18-6 Property: Colorless Specification: Formic acid content85% Min(Cl-)0.005% Max(SO42-)0.002% Max ... resister, etc.5, Rubber industry:Coagulation, etc.6, Steel industry:Acid cleaning of steel production, etc. 7, Paper industry:Pulp manufacturing, etc ... ,preservative etc. 10, Poultry industry:Silage, etc. P.W Formic Acid 85%