Skip to content
organic acid

File:Acetic-acid-dissociation-3D-balls.png · Wikimedia Commons · See Wikimedia Commons

EntityQ421948· pop 50· linked from 641 articles

organic acid

Sign in to save

any organic compound with an acid group (e.g. carboxyl group, sulfo group)

Wikidata facts

Subclass of
acid
Has part
hydrogen
Image
Acetic-acid-dissociation-3D-balls.png
Show 3 more facts
Commons category
Organic acids
topic's main category
Category:Organic acids
described by source
Armenian Soviet Encyclopedia
Sources (4)

via Wikidata · CC0

~7 min read

Encyclopedic overview

An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. The relative stability of the conjugate base of the acid determines its acidity. Other groups can also confer acidity, usually weakly: the thiol group –SH, the enol group, and the phenol group. In biological systems, organic compounds containing these groups are generally referred to as organic acids.

A few common examples include:

Excerpted from Wikipedia’s “organic acid” article, available under the CC BY-SA 4.0 licence.

Gallery (2)