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Flint Glass :: Flint glass () A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. Called also crystal glass. Cf. Glass..

Melanoscope :: Melanoscope (n.) An instrument containing a combination of colored glasses such that they transmit only red light, so that objects of other colors, as green leaves, appear black when seen through it. It is used for viewing colored flames, to detect the presence of potassium, lithium, etc., by the red light which they emit..

Mercaptide :: Mercaptide (n.) A compound of mercaptan formed by replacing its sulphur hydrogen by a metal; as, potassium mercaptide, C2H5SK..

Abraum Salts :: Abraum salts (n.) A red ocher used to darken mahogany and for making chloride of potassium.

Stearic :: Stearate (n.) A salt of stearic acid; as, ordinary soap consists largely of sodium or potassium stearates..

Oenanthylate :: Oenanthylate (n.) A salt of /nanthylic acid; as, potassium oenanthylate..

Vinasse :: Vinasse (n.) The waste liquor remaining in the process of making beet sugar, -- used in the manufacture of potassium carbonate..

Vitriolated :: Vitriolated (a.) Changed into a vitriol or a sulphate, or subjected to the action of sulphuric acid or of a sulphate; as, vitriolated potash, i. e., potassium sulphate..

Metalloid :: Metalloid (n.) Formerly, the metallic base of a fixed alkali, or alkaline earth; -- applied by Sir H. Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined..

Saline :: Saline (n.) A metallic salt; esp., a salt of potassium, sodium, lithium, or magnesium, used in medicine..

Potash :: Potash (n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash)..

Bichromatize :: Bichromatize (v. t.) To combine or treat with a bichromate, esp. with bichromate of potassium; as, bichromatized gelatine..

Sinigrin :: Sinigrin (n.) A glucoside found in the seeds of black mustard (Brassica nigra, formerly Sinapis nigra) It resembles sinalbin, and consists of a potassium salt of myronic acid..

Apophyllite :: Apophyllite (n.) A mineral relating to the zeolites, usually occurring in square prisms or octahedrons with pearly luster on the cleavage surface. It is a hydrous silicate of calcium and potassium..

Potash :: Potash (n.) The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash..

Nesslerize :: Nesslerize (v. t.) To treat or test, as a liquid, with a solution of mercuric iodide in potassium iodide and potassium hydroxide, which is called Nessler's solution or Nessler's test, and is used to detect the presence of ammonia..

Stub :: Stryphnic (a.) Pertaining to, or designating, a complex nitrogenous acid, obtained by the action of acetic acid and potassium nitrite on uric acid, as a yellow crystalline substance, with a bitter, astringent taste..

Lye :: Lye (n.) A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc..

Carboxide :: Carboxide (n.) A compound of carbon and oxygen, as carbonyl, with some element or radical; as, potassium carboxide..

Potassoxyl :: Potassoxyl (n.) The radical KO, derived from, and supposed to exist in, potassium hydroxide and other compounds..

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