Formic Acid Methanoic acid; hydrogen carboxylic acid; formylic acid Re: Formic acid 90% Appearance: Colourless liquid Specification: Purity: 90% min Colour Index Platinium Cobalt: 10 max Sulphate as SO4: 0.001% max CL: 0.003% max Fe: 0.0001% max Evaporation Residue: 0.006% max Packing: 250kg /plastic drum