SULPHONAL
Sul"pho*nal, n. (Med.)
Defn: A substance employed as a hypnotic, produced by the union of mercaptan and acetone.
SULPHONATE
Sul"pho*nate, n. (Chem.)
Defn: A salt of sulphonic acid.
SULPHONE
Sul"phone, n. (Chem.)
Defn: Any one of a series of compounds analogous to the ketones, and consisting of the sulphuryl group united with two hydrocarbon radicals; as, dimethyl sulphone, (CH.SO
SULPHONIC
Sul*phon"ic, a. (Chem.)
Defn: 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. Sulphonic group (Chem.), the hypothetical radical, SO2.OH, the characteristic residue of sulphonic acids.
SULPHONIUM
Sul*pho"ni*um, n. Etym: [Sulphur + ammonium.] (Chem.)
Defn: A hypothetical radical, SH3, regarded as the type and nucleus of the sulphines.