Acetic acid
Acetamide Acetic anhydride Acetonitrile Acetyl chloride Ethanol Ethyl acetate Potassium acetate Sodium acetate Thioacetic acid Supplementary data page Structure and properties
n, εr, etc. Thermodynamic data Phase behaviour Solid, liquid, gas Spectral data UV, IR, NMR, MS Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) N (verify) (what is: Y/N?) Infobox references
Acetic acid /əˈsiːtɨk/ (systematically named
ethanoic acid /ˌɛθəˈnoʊɨk/) is an organic compound with the chemical formula CH3COOH (also written as CH3CO2H or C2H4O2). It is a colourless liquid that when undiluted is also called
glacial acetic acid. Vinegar is roughly 4%-8% acetic acid by volume, making acetic acid the main component of vinegar apart from water. Acetic acid has a distinctive sour taste and pungent smell. Besides its production as household vinegar, it is mainly produced as a precursor to polyvinylacetate and cellulose acetate. Although it is classified as a weak acid, concentrated acetic acid is corrosive and can attack the skin.