Acetic acid, as ethanoic acid is commonly called, is a mild acid that, in the
concentrated form, is called glacial acetic acid. Glacial acetic acid is used in
many industrial processes, such as making cellulose acetate. Vinegar is a 4% to
8% solution of acetic acid that can be made by fermenting alcohol.
It is possible to have more than one carboxyl group in a carboxylic acid. In
the ethane derivative, it would be ethanedioic acid with a structure like this:
Summary of Oxygen Derivatives
Note: R^1 indicates a hydrocarbon chain different from R by having one less
carbon in the chain.
An actual example using ethane:
TIP
Note that the functional group of ketones is