Formic acid (also called methanoic acid) is a colorless liquid with a sharp odor. It is also the simplest carboxylic acid. The chemical formula is HCOOH or HCO2H.

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Formic acid is the simplest compound in the family of carboxylic acids, and it also known as methanoic acid (HCOOH). It is commonly used in the textile industry and processing of leather.