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Any one of a series of basic compounds which consist essentially of sulphur united with hydrocarbon radicals. In general they are oily or crystalline deliquescent substances having a peculiar odor; as, trimethyl sulphine, (CH3)3S.OH. Cf. Sulphonium.

g 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.

A hypothetical radical, SO4, regarded as forming the acid or negative constituent of sulphuric acid and the sulphates in electrolytic decomposition; -- so called in accordance with the binary theory of salts. [Written also sulphione.]

A binary compound of sulphion, or one so regarded; thus, sulphuric acid, Hsulphionide.

A salt of sulphurous acid.

A prefix (also used adjectively) designating sulphur as an ingredient in certain compounds. Cf. Thio-.

Of, pertaining to, or containing, sulphur and arsenic; -- said of an acid which is the same as arsenic acid with the substitution of sulphur for oxygen.

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

pecifically 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 grou…

ting, hypothetical sulphacid of tungsten (called also sulphowolframic acid), analogous to sulphuric acid, and known in its salts.

Of, pertaining to, and formerly designating, ethylsulphuric acid.

drate, KSH), or as a hydrate in which the oxygen has been wholly or partially replaced by sulphur.

(Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral calcium phosphate, Ca3(PO4)2, is changed to the primary or acid calcium phosphate Ca(H2PO4)2, which is soluble and therefore available for the soil.

To wash, as the face, with a cosmetic water, said by some to be prepared from the sulphur. [Obs.] She shall no oftener powder her hair, [or] surfel her cheeks, . . . but she shall as often gaze on my picture. Ford.

regular six-sided prisms, and is especially characterized by containing both nitrogen and sulphur, being chemically amido- isethionic acid, C

valence as contrasted with tellurous compounds; as, telluric acid, which is analogous to sulphuric acid. Telluric bismuth (Min.), tetradymite. -- Telluric silver (Min.), hessite.

A rare nonmetallic element, analogous to sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2. Graphic tellurium. (Min.) See S…

valence as contrasted with telluric compounds; as, tellurous acid, which is analogous to sulphurous acid.

ipitate; also, the reagent employed to produce such reaction; thus, the ordinary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt. Test act (Eng. Law), an act of the English Parliament prescribing a form of oath and declaration against tr…

minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7.