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Rhodizonic :: Rhodizonic (a.) Pertaining to, or designating, a colorless crystalline substance (called rhodizonic acid, and carboxylic acid) obtained from potassium carboxide and from certain quinones. It forms brilliant red, yellow, and purple salts..

Hepar :: Hepar (n.) Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris (/)..

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

Ethide :: Ethide (n.) Any compound of ethyl of a binary type; as, potassium ethide..

Soap :: Soap (n.) A substance which dissolves in water, thus forming a lather, and is used as a cleansing agent. Soap is produced by combining fats or oils with alkalies or alkaline earths, usually by boiling, and consists of salts of sodium, potassium, etc., with the fatty acids (oleic, stearic, palmitic, etc.). See the Note below, and cf. Saponification. By extension, any compound of similar composition or properties, whether used as a cleaning agent or not..

Rubidium :: Rubidium (n.) A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2..

Fowler''s Solution :: Fowler's solution () An aqueous solution of arsenite of potassium, of such strength that one hundred parts represent one part of arsenious acid, or white arsenic; -- named from Fowler, an English physician who first brought it into use..

Potassa :: Potassa (n.) Potassium hydroxide, commonly called caustic potash..

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..

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

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..

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..

Potassamide :: Potassamide (n.) A yellowish brown substance obtained by heating potassium in ammonia.

Potassium :: Potassium (n.) An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium)..

Aurate :: Aurate (n.) A combination of auric acid with a base; as, aurate or potassium..

Kainit :: Kainit (n.) Salts of potassium used in the manufacture of fertilizers.

Persulphocyanogen :: Persulphocyanogen (n.) An orange-yellow substance, produced by the action of chlorine or boiling dilute nitric acid and sulphocyanate of potassium; -- called also pseudosulphocyanogen, perthiocyanogen, and formerly sulphocyanogen..

Haloxyline :: Haloxyline (n.) An explosive mixture, consisting of sawdust, charcoal, niter, and ferrocyanide of potassium, used as a substitute for gunpowder..

Bichromate :: Bichromate (n.) A salt containing two parts of chromic acid to one of the other ingredients; as, potassium bichromate; -- called also dichromate..

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

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