onium compound


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onium compound

(ˈəʊnɪəm) or

onium salt

n
(Chemistry) chem any salt in which the positive ion (onium ion) is formed by the attachment of a proton to a neutral compound, as in ammonium, oxonium, and sulphonium compounds
[C20: from (amm)onium]
References in periodicals archive ?
This could be due to degradation resulting from the low thermal stability of the onium compound, diffusion of excess intercalant out of the galleries, or both.
This peak arises mainly from the OH groups of the hydroxyethyl radical in the onium compound, hydrogen-bonded to each other or to the clay surface.
Some of these peaks are also seen in the spectrum of Cloisite[R] 10A and arise from the 2MBHTA of the onium compound. However, the peaks whose positions are labeled in Fig.
In the commercial clay I30E, most of the onium compound is "bound" to the clay surface via ionic bonds, but there is evidence for some unbound material as well.