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Salt :: Salt (n.) The neutral compound formed by the union of an acid and a base; thus, sulphuric acid and iron form the salt sulphate of iron or green vitriol..

Pyrosulphuric :: Pyrosulphuric (a.) Pertaining to, or designating, an acid called also disulphuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration..

Hyposulphuric :: Hyposulphuric (a.) Pertaining to, or containing, sulphur in a lower state of oxidation than in the sulphuric compounds; as, hyposulphuric 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..

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..

Thiosulphuric :: Thiosulphuric (a.) Of, pertaining to, or designating, an unstable acid, H2S2O3, analogous to sulphuric acid, and formerly called hyposulphurous acid..

Sulphuric :: Sulphuric (a.) Of or pertaining to sulphur; as, a sulphuric smell..

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..

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..

Letheon :: Letheon (n.) Sulphuric ether used as an anaesthetic agent.

Haematoin :: Haematoin (n.) A substance formed from the hematin of blood, by removal of the iron through the action of concentrated sulphuric acid. Two like bodies, called respectively haematoporphyrin and haematolin, are formed in a similar manner..

Hemiprotein :: Hemiprotein (n.) An insoluble, proteid substance, described by Schutzenberger, formed when albumin is heated for some time with dilute sulphuric acid. It is apparently identical with antialbumid and dyspeptone..

Sponginess :: Spongin (n.) The chemical basis of sponge tissue, a nitrogenous, hornlike substance which on decomposition with sulphuric acid yields leucin and glycocoll..

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..

Etherification :: Etherification (n.) The act or process of making ether; specifically, the process by which a large quantity of alcohol is transformed into ether by the agency of a small amount of sulphuric, or ethyl sulphuric, acid..

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..

Exsiccator :: Exsiccator (n.) An apparatus for drying substances or preserving them from moisture; a desiccator; also, less frequently, an agent employed to absorb moisture, as calcium chloride, or concentrated sulphuric acid..

Disulphate :: Disulphate (n.) An acid salt of sulphuric acid, having only one equivalent of base to two of the acid..

Leucin :: Leucin (n.) A white, crystalline, nitrogenous substance formed in the decomposition of albuminous matter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc., and likewise in the vegetable kingdom. Chemically it is to be considered as amido-caproic acid..

Ethylene :: Ethylene (n.) A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen..

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