Alkalies

Alkalies
Alkali Al"ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster]

2. (Chem.) 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. [1913 Webster]

3. Soluble mineral matter, other than common salt, contained in soils of natural waters. [Western U. S.] [Webster 1913 Suppl.]

{Fixed alkalies}, potash and soda.

{Vegetable alkalies}. Same as {Alkaloids}.

{Volatile alkali}, ammonia, so called in distinction from the fixed alkalies. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • alkalies — Смотри Щелочи …   Энциклопедический словарь по металлургии

  • ALKALIES —    bodies which, combining with acids form salts, are soluble in water, and properly four in number, viz., potash, soda, lithia, and ammonia …   The Nuttall Encyclopaedia

  • alkalies — al·ka·li || ælkÉ™laɪ n. soluble base, any of a class of bases which neutralize acids to form salts (Chemistry) …   English contemporary dictionary

  • Fixed alkalies — Alkali Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a …   The Collaborative International Dictionary of English

  • Vegetable alkalies — Alkali Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a …   The Collaborative International Dictionary of English

  • Щелочи — [alkalies] растворимые в воде основания. Водные растворы щелочей характеризуется высокой концентрацией гидроксидных ионов ОН. К щелочам относятся оксиды щелочных, щелочноземельных металлов и аммония. Большинство щелочей твердые белые весьма… …   Энциклопедический словарь по металлургии

  • Alkali — Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a class… …   The Collaborative International Dictionary of English

  • Alkalis — Alkali Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a …   The Collaborative International Dictionary of English

  • Volatile alkali — Alkali Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a …   The Collaborative International Dictionary of English

  • alkali — /al keuh luy /, n., pl. alkalis, alkalies, adj. n. 1. Chem. a. any of various bases, the hydroxides of the alkali metals and of ammonium, that neutralize acids to form salts and turn red litmus paper blue. b. any of various other more or less… …   Universalium

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