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Sulphamate :: Sulphacid (n.) 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..

Pyr- :: Pyr- () Combining forms designating fire or heat; specifically (Chem.), used to imply an actual or theoretical derivative by the action of heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic, etc..

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

Hydrosulphureted :: Hydrosulphureted (a.) Combined with hydrogen sulphide.

Sulphydric :: Sulphydrate (n.) A compound, analogous to a hydrate, regarded as a salt of sulphydric acid, or as a derivative of hydrogen sulphide in which one half of the hydrogen is replaced by a base (as potassium sulphydrate, KSH), or as a hydrate in which the oxygen has been wholly or partially replaced by sulphur..

Hyposulphate :: Hyposulphate (n.) A salt of hyposulphuric acid.

Catalysis :: Catalysis (n.) A process by which reaction occurs in the presence of certain agents which were formerly believed to exert an influence by mere contact. It is now believed that such reactions are attended with the formation of an intermediate compound or compounds, so that by alternate composition and decomposition the agent is apparenty left unchanged; as, the catalysis of making ether from alcohol by means of sulphuric acid; or catalysis in the action of soluble ferments (as diastase, or ptyali

Sulpho- :: Sulphite (n.) A salt of sulphurous acid.

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..

Ethylsulphuric :: Ethylsulphuric (a.) Pertaining to, or containing, ethyl and sulphuric acid..

Taurine :: Taurine (n.) A body occurring in small quantity in the juices of muscle, in the lungs, and elsewhere, but especially in the bile, where it is found as a component part of taurocholic acid, from which it can be prepared by decomposition of the acid. It crystallizes in colorless, regular six-sided prisms, and is especially characterized by containing both nitrogen and sulphur, being chemically amido-isethionic acid, C2H7NSO3..

Sulphur :: 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..

Sulphuret :: Sulphureous (a.) Consisting of sulphur; having the qualities of sulphur, or brimstone; impregnated with sulphur..

Phenicine :: Phenicine (n.) A coloring matter produced by the action of a mixture of strong nitric and sulphuric acids on phenylic alcohol.

Sulphuryl :: Sulphury (a.) Resembling, or partaking of the nature of, sulphur; having the qualities of sulphur..

Boottopping :: Boottopping (n.) The act or process of daubing a vessel's bottom near the surface of the water with a mixture of tallow, sulphur, and resin, as a temporary protection against worms, after the slime, shells, etc., have been scraped off..

Hydrosulphuric :: Hydrosulphuric (a.) Pertaining to, or derived from, hydrogen and sulphur; as, hydrosulphuric acid, a designation applied to the solution of hydrogen sulphide in water..

Portfire :: Portfire (n.) A case of strong paper filled with a composition of niter, sulphur, and mealed powder, -- used principally to ignite the priming in proving guns, and as an incendiary material in shells..

Sulphite :: Sulphionide (n.) A binary compound of sulphion, or one so regarded; thus, sulphuric acid, H/SO/, is a sulphionide..

Carboy :: Carboy (n.) A large, globular glass bottle, esp. one of green glass, inclosed in basket work or in a box, for protection; -- used commonly for carrying corrosive liquids; as sulphuric acid, etc..

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