formic acidCH₂O₂100%formic acid, methanoic acid, C1:0Methanoic acid occurs as a colorless liquid with a strong smell similar to vinegar. It occurs in nature and is also found in some insects such as ants. As a concentrated acid it is very corrosive.Space reserved for adsPhysical characteristicsMolecular mass 46Density 1.22 kg/m³Melting point 47 ℉8.35 ℃282 K Boiling point 213 ℉101 ℃374 K Partition coeff. (logP) -0.54Reactions using formic acidformic acid + butanoyl chloride → butyric formic anhydride + hydrogen chlorideformic acid + propanoyl chloride → formic propionic anhydride + hydrogen chlorideformic acid + acetyl chloride → acetic formic anhydride + hydrogen chloridemethanol + formic acid → methyl methanoate + waterCompound added to the database on April 22, 2019, last modified on September 15, 2022.