Definition of potash

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

Lern More About Potash

Clavellated :: Clavellated (a.) Said of potash, probably in reference to its having been obtained from billets of wood by burning..
Hygrometrical :: Hygrometrical (a.) Readily absorbing and retaining moisture; as, hygrometric substances, like potash..
Alkali :: Alkali (n.) One of a class of caustic bases, such as soda, potash, ammonia, and lithia, whose distinguishing peculiarities are solubility in alcohol and water, uniting with oils and fats to form soap, neutralizing and forming salts with acids, turning to brown several vegetable yellows, and changing reddened litmus to blue..
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..
Dover's Powder :: Dover's Powder () A powder of ipecac and opium, compounded, in the United States, with sugar of milk, but in England (as formerly in the United States) with sulphate of potash, and in France (as in Dr. Dover's original prescription) with nitrate and sulphate of potash and licorice. It is an anodyne diaphoretic..
Zaffer :: Zaffer (n.) A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc..
Alum Stone :: Alum stone () A subsulphate of alumina and potash; alunite.
Metacrolein :: Metacrolein (n.) A polymeric modification of acrolein obtained by heating it with caustic potash. It is a crystalline substance having an aromatic odor.
Inunction :: Inunction (n.) The act of anointing, or the state of being anointed; unction; specifically (Med.), the rubbing of ointments into the pores of the skin, by which medicinal agents contained in them, such as mercury, iodide of potash, etc., are absorbed..
Zeolite :: Zeolite (n.) A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavities of amygdaloid, basalt, and lava, also, less frequently, in granite and gneiss. So called because many of these species intumesce before the blowpipe..
Saline :: Saline (n.) A crude potash obtained from beet-root residues and other similar sources.
Leucite :: Leucite (n.) A mineral having a glassy fracture, occurring in translucent trapezohedral crystals. It is a silicate of alumina and potash. It is found in the volcanic rocks of Italy, especially at Vesuvius..
Polverine :: Polverine (n.) Glassmaker's ashes; a kind of potash or pearlash, brought from the Levant and Syria, -- used in the manufacture of fine glass..
Paragonite :: Paragonite (n.) A kind of mica related to muscovite, but containing soda instead of potash. It is characteristic of the paragonite schist of the Alps..
Bromoform :: Bromoform (n.) A colorless liquid, CHBr3, having an agreeable odor and sweetish taste. It is produced by the simultaneous action of bromine and caustic potash upon wood spirit, alcohol, or acetone, as also by certain other reactions. In composition it is the same as chloroform, with the substitution of bromine for chlorine. It is somewhat similar to chloroform in its effects..
Blacksalter :: Blacksalter (n.) One who makes crude potash, or black salts..
Ashery :: Ashery (n.) A place where potash is made.
Black Salts :: Black salts () Crude potash.
Smalt :: Smalt (v. t.) A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder..
Orthoclase :: Orthoclase (n.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.
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