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

Pearlash :: Pearlash (n.) A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. It is obtained by lixiviating wood ashes, and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc..

Alkaline :: Alkaline (a.) Of or pertaining to an alkali or to alkalies; having the properties of an alkali.

Vitrifiable :: Vitrifiable (a.) Capable of being vitrified, or converted into glass by heat and fusion; as, flint and alkalies are vitrifiable..

Alkalize :: Alkalize (v. t.) To render alkaline; to communicate the properties of an alkali to.

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..

Litmus :: Litmus (n.) A dyestuff extracted from certain lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein..

Alcalimeter :: Alcalimeter (n.) See Alkalimeter.

Uranin :: Uranin (n.) An alkaline salt of fluorescein, obtained as a brownish red substance, which is used as a dye; -- so called from the peculiar yellowish green fluorescence (resembling that of uranium glass) of its solutions. See Fluorescein..

Fluorescein :: Fluorescein (n.) A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin..

Ammonium :: Ammonium (n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals..

Bile :: Bile (n.) A yellow, or greenish, viscid fluid, usually alkaline in reaction, secreted by the liver. It passes into the intestines, where it aids in the digestive process. Its characteristic constituents are the bile salts, and coloring matters..

Nitrification :: Nitrification (n.) A process of oxidation, in which nitrogenous vegetable and animal matter in the presence of air, moisture, and some basic substances, as lime or alkali carbonate, is converted into nitrates..

Ebullition :: Ebullition (n.) Effervescence occasioned by fermentation or by any other process which causes the liberation of a gas or an aeriform fluid, as in the mixture of an acid with a carbonated alkali..

Correct :: Correct (v. t.) To counteract the qualities of one thing by those of another; -- said of whatever is wrong or injurious; as, to correct the acidity of the stomach by alkaline preparations..

Caesium :: Caesium (n.) A rare alkaline metal found in mineral water; -- so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis, and is the most strongly basic and electro-positive substance known. Symbol Cs. Atomic weight 132.6..

Barium :: Barium (n.) One of the elements, belonging to the alkaline earth group; a metal having a silver-white color, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it becomes oxidized in the air. Atomic weight, 137. Symbol, Ba. Its oxide called baryta..

Flux :: Flux (n.) Any substance or mixture used to promote the fusion of metals or minerals, as alkalies, borax, lime, fluorite..

Antacid :: Antacid (n.) A remedy for acidity of the stomach, as an alkali or absorbent..

Corrode :: Corrode (v. t.) To eat away by degrees; to wear away or diminish by gradually separating or destroying small particles of, as by action of a strong acid or a caustic alkali..

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