English definition of Sulphur

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Definition of sulphur

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Sulphur (n.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 32. The specific gravity of ordinary octohedral sulphur is 2.05; of prismatic sulphur, 1.96..

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Sulphurator :: Sulphuration (n.) The act or process of combining or impregnating with sulphur or its compounds; also, the state of being so combined or impregnated..

Sulphamide :: Sulphamic (a.) 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..

Dibasic :: Dibasic (a.) Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. Diacid, Bibasic..

Ustulation :: Ustulation (n.) The operation of expelling one substance from another by heat, as sulphur or arsenic from ores, in a muffle..

Trioxide :: Trioxide (n.) An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide..

Thionine :: Thionine (n.) An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet..

Surfer :: Surfle (v. t.) To wash, as the face, with a cosmetic water, said by some to be prepared from the sulphur..

Hyposulphite :: Hyposulphite (n.) A salt of hyposulphurous acid proper.

Sulphine :: Sulphindigotic (a.) Of, pertaining to, or designating, a sulphonic acid obtained, as a blue solution, by dissolving indigo in sulphuric acid; -- formerly called also cerulic sulphuric acid, but properly called indigo-disulphonic acid..

Bornite :: Bornite (n.) A valuable ore of copper, containing copper, iron, and sulphur; -- also called purple copper ore (or erubescite), in allusion to the colors shown upon the slightly tarnished surface..

Desulphurate :: Desulphurate (v. t.) To deprive of sulphur.

Sublimate :: Sublimate (v. t.) To bring by heat into the state of vapor, which, on cooling, returns again to the solid state; as, to sublimate sulphur or camphor..

Disulphuret :: Disulphuret (n.) See Disulphide.

Persulphocyanic :: Persulphocyanic (a.) Pertaining to, or designating, a yellow crystalline substance (called also perthiocyanic acid), analogous to sulphocyanic acid, but containing more sulphur..

Desiccator :: Desiccator (n.) A short glass jar fitted with an air-tight cover, and containing some desiccating agent, as sulphuric acid or calcium chloride, above which is suspended the material to be dried, or preserved from moisture..

Helvite :: Helvite (n.) A mineral of a yellowish color, consisting chiefly of silica, glucina, manganese, and iron, with a little sulphur..

Telluric :: Telluric (a.) Of or pertaining to tellurium; derived from, or resembling, tellurium; specifically, designating those compounds in which the element has a higher valence as contrasted with tellurous compounds; as, telluric acid, which is analogous to sulphuric acid..

Hydrosulphite :: Hydrosulphite (n.) A saline compound of hydrosulphurous acid and a base.

Tetrathionic :: Tetrathionic (a.) Of, pertaining to, or designating, a thionic derivative, H/S/O/, of sulphuric acid, obtained as a colorless, odorless liquid..

Arabinose :: Arabinose (n.) A sugar of the composition C5H10O5, obtained from cherry gum by boiling it with dilute sulphuric acid..