Acetic acid formula: The molecular formula of acetic acid is

The molecular formula of acetic acid is CH 3 COOH. It consists of two carbon atoms, four hydrogen atoms, and two oxygen atoms, and is categorized under monocarboxylic acids—specifically, as the second-simplest carboxylic acid after formic acid. Acetic acid also called ethanoic acid has the chemical formula CH3COOH and is prepared industrially by various methods. It is the second simplest carboxylic acid after formic acid. Acetic acid solution is miscible in all proportions with water, ethanol, and ether. Acetic acid, or ethanoic acid, is a carboxylic acid. It is the main compound of vinegar, other than water. The chemical formula is CH 3 COOH (also written as CH 3 CO 2 H, HC 2 H 3 O 2, or C 2 H 4 O 2). It tastes and smells sour; it has no color. Its melting point is 16.5 °C (61.6 °F) and its boiling point is 118.1 °C (244.5 °F). It has a pH ... acetic acid (CH3COOH), the most important of the carboxylic acids. A dilute (approximately 5 percent by volume) solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is called vinegar; a salt, ester, or acylal of acetic acid is called acetate.