quaternary ammonium compound


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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 ?
These phenomena can be explained by the hydrophobic film resulting from absorption of quaternary ammonium compounds on MMT, which blocks the water penetrating into the clay and prevents clay from hydrating swelling.
Quaternary ammonium TPBs were synthesized through the reaction of 1 mol of TPB sodium aqueous solution and 1 tool of quaternary ammonium compound (Lin et al.
In order to thicken oil and solvent systems, the hydrophilic clays are modified with various types of hydrophobic quaternary ammonium compounds.
Quaternary ammonium compounds in plants in relation to salt resistance.
The method uses quaternary ammonium compounds for inhibiting the attachment of and for removing foodborne microbial contamination from poultry and meat products.
DDACb used in ACQ formulation is a dialkyl-type, quaternary ammonium compound, which is a very effective biocide.
Lonza's Carboquat is a quaternary ammonium compound that could be used to treat wood flour for WPCs.
A glass-fiber matrix is precoated with a positively charged quaternary ammonium compound that, after hemolysis of the blood sample, electrostatically captures the negatively charged glycohemoglobin complex.
The formulations most commonly used by the BC industry are based on the quaternary ammonium compound didecyldimethylammonium chloride (DDAC).
In fact, all hair conditioners on the market today continue to contain cationic surfactants, either a fatty quaternary ammonium compound or an amine salt.
Tenders are invited for Supply Of Quaternary Ammonium Compound Based Biocide (Qac)