Search results
Results from the WOW.Com Content Network
Quaternary ammonium cation. The R groups may be the same or different alkyl or aryl groups. Also, the R groups may be connected. In organic chemistry, quaternary ammonium cations, also known as quats, are positively-charged polyatomic ions of the structure [NR 4] +, where R is an alkyl group, an aryl group [1] or organyl group.
Dimethyldioctadecylammonium chloride (also commonly distearyl dimethyl ammonium chloride or distearyldimonium chloride) is an organic compound classified as quaternary ammonium salt. The nitrogen center substituted with two methyl groups and two stearyl groups.
Quaternium-15 (systematic name: hexamethylenetetramine chloroallyl chloride) is a quaternary ammonium salt that has been used as a surfactant and preservative.It acts as an antimicrobial agent because it slowly releases formaldehyde, which is a preservative with biocidal properties.
It is a bifunctional compound, meaning, it contains both a quaternary ammonium functional group and a hydroxyl functional group. The anion of this salt, choline, occurs in nature in living beings. [2] Choline chloride is a white, water-soluble salt used mainly in animal feed. [3]
In another use of the term in organic chemistry, a quaternary compound is or has a cation consisting of a central positively charged atom with four substituents, especially organic (alkyl and aryl) groups, discounting hydrogen atoms. [1] The best-known quaternary compounds are quaternary ammonium salts, having a nitrogen atom at the center. [2]
In mice this disinfectant was found to cause infertility and birth defects when combined with Alkyl (60% C14, 25% C12, 15% C16) dimethyl benzyl ammonium chloride (ADBAC). [ 5 ] [ 6 ] These studies contradict the older toxicology data set on quaternary ammonia compounds which was reviewed by the U.S. Environmental Protection Agency (U.S. EPA ...
Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH 3) 4 N + Cl − is often abbreviated further as Me 4 N + Cl −.
The amine is basic and undergoes quaternization with alkyl halides (e.g. hexyl bromide) to give quaternary ammonium salts: [4] [C 6 H 5 CH 2 N(CH 3 ) 2 + RX → [C 6 H 5 CH 2 N(CH 3 ) 2 R] + X − Such salts are useful phase transfer catalysts .