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Sulphacid
- - An acid in which, to a greater or less extent, sulphur plays a part analogous to that of oxygen in an oxyacid; thus, thiosulphuric and sulpharsenic acids are sulphacids; -- called also sulphoacid. See the Note under Acid, n., 2.
Sulphamic
- - Of or pertaining to a sulphamide; derived from, or related to, a sulphamide; specifically, designating an amido acid derivative, NH2.SO2.OH, of sulphuric acid (analogous to sulphonic acid) which is not known in the free state, but is known in its salts.
Sulphates
- noun - a salt or ester of sulphuric acid
Sulphatic
- - Of, pertaining to, resembling, or containing, a sulphate or sulphates.
Sulphato-
- - A combining form (also used adjectively) denoting a sulphate as an ingredient in certain double salts; as, sulphato-carbonate.
Sulphides
- noun - a compound of sulphur and some other element that is more electropositive
Sulphinic
- - Of, pertaining to, or designating, any one of a series of acids regarded as acid ethereal salts of hyposulphurous acid; as, methyl sulphinic acid, CH3.SO.OH, a thick unstable liquid.
Sulphonal
- - A substance employed as a hypnotic, produced by the union of mercaptan and acetone.
Sulphonic
- - 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.