... 76%,85%. 2, PACKING: 25KG DRUM, 1000KG IBC, 1200KG IBC. 3, Cas no.: 64-18-6. Formic acid 85%SPECSPurity: 85%min.Sulphate as SO4 ... Fe: 0.0005%max.Evaporation Residue:0.02%max.Usage: Formic Acid is widely used in diversified lines all over the world ... Amidopyrin, Vitamin B and many other medicines. In chemical industry, Formic Acid is used in producing Methanamide , Diethyl Formamide, rubber age resister ...