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sulphonic a. 酸性硫酸基的 酸性硫酸基的 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]
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