quaternary ammonium compound

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Related to Quaternary ammonium cation: Quaternary ammonium salt

quaternary ammonium compound

n.
Any of a group of compounds composed of a cation, in which a central nitrogen atom is joined to four organic groups, and any of various anions, used as antiseptics, solvents, and emulsifying agents.

quaternary ammonium compound

n
(Elements & Compounds) a type of ionic compound that can be regarded as derived from ammonium compounds by replacing the hydrogen atoms with organic groups

quat′ernary ammo′nium com`pound


n.
any of a class of salts derived from ammonium in which the nitrogen atom is attached to four organic groups; used as antiseptics and disinfectants.
[1815–25]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quaternary ammonium compound - a compound derived from ammonium with hydrogen atoms replaced by organic groups; used as surface-active agents, disinfectants, and in drugs
organic compound - any compound of carbon and another element or a radical
References in periodicals archive ?
Four kinds of quaternary ammonium cations based on long-alkyl chain are used to hydrophobic parts of clays.
existing in the gallery of the nanoclay and quaternary ammonium cations.