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/ˈælkəlˌaɪ/ Listen

Alkali

noun

(pl. alkalis or alkalies)

Any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water. Synonym: base.

A mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture.

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"Alkali" Quotes from Famous Books

... alcoholized caustic soda; at the expiration of one hour the envelopes of the pericarp, and of the testa Nos. 2, 3, 4, 5, should be separated by friction in a coarse cloth, having been reduced by the action of the alkali to a pulpy state; each berry should then be opened separately to remove the portion of the envelope held in the fold of the crease, and then all the berries divided in two are put into three parts of ...

— Scientific American Supplement No. 275 • Various

... marked by the Hayward patent (No. 40,407), granted in 1868, for "boiling waste rags of fibrous material and rubber in an acid or alkali, for the purpose of destroying the tenacity of the fibers of the rags, so that the rubber may be reground." But this process extended only to the weakening of the fibers, and not their complete destruction. A later patent, in ...

— Scientific American Supplement, No. 1178, June 25, 1898 • Various

... said Jeff, "any more than oil and water. Or alkali and acid. We'd make a mighty fizz. I'm in it for all I'm worth, Amabel. To ...

— The Prisoner • Alice Brown

... interesting results are following. We have duplicates of the soils that grow the wrapper tobacco in Sumatra and the filler tobacco in Cuba. It will be only a question of time when the large amounts paid to these countries will be paid to our own people. The reclamation of alkali lands is progressing, to give object lessons to our people in methods by which worthless ...

— State of the Union Addresses of Theodore Roosevelt • Theodore Roosevelt

... the glacis of a fort, and the cliffs of a constant height, like the ramparts of a city. Not even spring could change one feature of that desolate scene; and the windows looked down across a plain, snowy with alkali, to ranges of cold stone sierras on the north. Twice or thrice I remember passing within view of this forbidding residence; and seeing it always shuttered, smokeless, and deserted, I remarked to my parents that some day it would ...

— The Works of Robert Louis Stevenson - Swanston Edition Vol. 5 (of 25) • Robert Louis Stevenson

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