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

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

Disulphate :: Disulphate (n.) A salt of disulphuric or pyrosulphuric acid; a pyrosulphate.

Hydrogen :: Hydrogen (n.) A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very

Nitrosyl :: Nitrosyl (n.) the radical NO, called also the nitroso group. The term is sometimes loosely used to designate certain nitro compounds; as, nitrosyl sulphuric acid. Used also adjectively..

Phenicine :: Phenicine (n.) A purple powder precipitated when a sulphuric solution of indigo is diluted with water.

Nitroglycerin :: Nitroglycerin (n.) A liquid appearing like a heavy oil, colorless or yellowish, and consisting of a mixture of several glycerin salts of nitric acid, and hence more properly called glycerin nitrate. It is made by the action of nitric acid on glycerin in the presence of sulphuric acid. It is extremely unstable and terribly explosive. A very dilute solution is used in medicine as a neurotic under the name of glonion..

Glycogen :: Glycogen (n.) A white, amorphous, tasteless substance resembling starch, soluble in water to an opalescent fluid. It is found abundantly in the liver of most animals, and in small quantity in other organs and tissues, particularly in the embryo. It is quickly changed into sugar when boiled with dilute sulphuric or hydrochloric acid, and also by the action of amylolytic ferments..

Thallium :: Thallium (n.) A rare metallic element of the aluminium group found in some 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..

Guanidine :: Guanidine (n.) A strongly alkaline base, CN3H5, formed by the oxidation of guanin, and also obtained combined with methyl in the decomposition of creatin. Boiled with dilute sulphuric acid, it yields urea and ammonia..

Hexad :: Hexad (n.) An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective..

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

Sulphurine :: Sulphuric (a.) Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a higher valence as contrasted with the sulphurous compounds; as, sulphuric acid..

Treat :: Treat (v. t.) To subject to some action; to apply something to; as, to treat a substance with sulphuric acid..

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..

Neurokeratin :: Neurokeratin (n.) A substance, resembling keratin, present in nerve tissue, as in the sheath of the axis cylinder of medullated nerve fibers. Like keratin it resists the action of most chemical agents, and by decomposition with sulphuric acid yields leucin and tyrosin..

Thermotype :: Thermotype (n.) A picture (as of a slice of wood) obtained by first wetting the object slightly with hydrochloric or dilute sulphuric acid, then taking an impression with a press, and next strongly heating this impression..

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..

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

Mesitylene :: Mesitylene (n.) A colorless, fragrant liquid, C6H3(CH3)3, of the benzene series of hydrocarbons, obtained by distilling acetone with sulphuric acid..

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