Definition of alkali

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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..

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Pinite :: Pinite (n.) A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, as iolite..
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..
Caoutchouc :: Caoutchouc (n.) A tenacious, elastic, gummy substance obtained from the milky sap of several plants of tropical South America (esp. the euphorbiaceous tree Siphonia elastica or Hevea caoutchouc), Asia, and Africa. Being impermeable to liquids and gases, and not readly affected by exposure to air, acids, and alkalies, it is used, especially when vulcanized, for many purposes in the arts and in manufactures. Also called India rubber (because it was first brought from India, and was formerly used c
Alkalifiable :: Alkalifiable (a.) Capable of being alkalified, or converted into an alkali..
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 (/)..
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)..
Nuclein :: Nuclein (n.) A constituent of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur..
Saleratus :: Saleratus (n.) Aerated salt; a white crystalline substance having an alkaline taste and reaction, consisting of sodium bicarbonate (see under Sodium.) It is largely used in cooking, with sour milk (lactic acid) or cream of tartar as a substitute for yeast. It is also an ingredient of most baking powders, and is used in the preparation of effervescing drinks..
Albuminate :: Albuminate (n.) A substance produced by the action of an alkali upon albumin, and resembling casein in its properties; also, a compound formed by the union of albumin with another substance..
Antalkaline :: Antalkaline (a.) Of power to counteract alkalies.
Lithia :: Lithia (n.) The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium..
Protamin :: Protamin (n.) An amorphous nitrogenous substance found in the spermatic fluid of salmon. It is soluble in water, which an alkaline reaction, and unites with acids and metallic bases..
Casein :: Casein (n.) A proteid substance present in both the animal and the vegetable kingdom. In the animal kingdom it is chiefly found in milk, and constitutes the main part of the curd separated by rennet; in the vegetable kingdom it is found more or less abundantly in the seeds of leguminous plants. Its reactions resemble those of alkali albumin..
Alkalize :: Alkalize (v. t.) To render alkaline; to communicate the properties of an alkali to.
Deliquesce :: Deliquesce (v. i.) To dissolve gradually and become liquid by attracting and absorbing moisture from the air, as certain salts, acids, and alkalies..
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..
Kill :: Kill (v. t.) To destroy the effect of; to counteract; to neutralize; as, alkali kills acid..
Sagebrush :: Sagebrush (n.) A low irregular shrub (Artemisia tridentata), of the order Compositae, covering vast tracts of the dry alkaline regions of the American plains; -- called also sagebush, and wild sage..
Alkalescency :: Alkalescency (n.) A tendency to become alkaline; or the state of a substance in which alkaline properties begin to be developed, or to predominant..
Helianthin :: Helianthin (n.) An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl orange..
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