Sulphonic group

Sulphonic group
Sulphonic Sul*phon"ic, a. (Chem.) Pertaining to, or derived from, a sulphone; -- used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by treating sulphuric acid with certain aromatic bases (as benzene); as, phenyl sulphonic acid, {C6H5.SO2.OH}, a stable colorless crystalline substance. [1913 Webster]

{Sulphonic group} (Chem.), the hypothetical radical, {SO2.OH}, the characteristic residue of sulphonic acids. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Sulphonic — Sul*phon ic, a. (Chem.) Pertaining to, or derived from, a sulphone; used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by treating… …   The Collaborative International Dictionary of English

  • sulphonic acid — /sʌlˌfɒnɪk ˈæsəd/ (say sul.fonik asuhd) noun any of a large group of organic compounds containing the sulphonic group. They are strong acids, giving neutral sodium salts and used in the synthesis of phenols, dyes, and other substances. Also,… …  

  • sulphonic — /sʌlˈfɒnɪk/ (say sul fonik) adjective 1. denoting or relating to the group SO2OH. 2. denoting or relating to any of the acids, mostly organic, containing the SO3H group. Also, sulfonic …  

  • sulphonic acid — (US sulfonic acid) noun Chemistry an organic acid containing the group ‒SO2OH …   English new terms dictionary

  • C6H5SO2OH — Sulphonic Sul*phon ic, a. (Chem.) Pertaining to, or derived from, a sulphone; used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by… …   The Collaborative International Dictionary of English

  • SO2OH — Sulphonic Sul*phon ic, a. (Chem.) Pertaining to, or derived from, a sulphone; used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by… …   The Collaborative International Dictionary of English

  • sulphonate — n. salt or ester of a sulphonic acid (Chemistry) v. (Chemistry) treat with a sulphuric acid; add a sulphonic group into an organic compound …   English contemporary dictionary

  • sulphonated — n. salt or ester of a sulphonic acid (Chemistry) v. (Chemistry) treat with a sulphuric acid; add a sulphonic group into an organic compound …   English contemporary dictionary

  • sulphonates — n. salt or ester of a sulphonic acid (Chemistry) v. (Chemistry) treat with a sulphuric acid; add a sulphonic group into an organic compound …   English contemporary dictionary

  • sulphonating — n. salt or ester of a sulphonic acid (Chemistry) v. (Chemistry) treat with a sulphuric acid; add a sulphonic group into an organic compound …   English contemporary dictionary

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