alkali


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al·ka·li

 (ăl′kə-lī′)
n. pl. al·ka·lis or al·ka·lies
1. A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.
2. Any of various soluble mineral salts found in natural water and arid soils.
3. Alkali metal.
4. A substance having highly basic properties; a strong base.

[Middle English, alkaline substance from calcined plant ashes, from Medieval Latin, from Arabic al-qily, the ashes, lye, potash : al-, the + qily, ashes (from qalā, to fry, roast; see qly in Semitic roots).]

alkali

(ˈælkəˌlaɪ)
n, pl -lis or -lies
1. (Chemistry) chem a soluble base or a solution of a base
2. (Geological Science) a soluble mineral salt that occurs in arid soils and some natural waters
[C14: from Medieval Latin, from Arabic al-qili the ashes (of the plant saltwort)]

al•ka•li

(ˈæl kəˌlaɪ)

n., pl. -lis, -lies,
adj. n.
1.
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 active bases, as calcium hydroxide.
2. a soluble mineral salt or a mixture of soluble salts, present in some soils, esp. in arid regions, and detrimental to the growing of most crops.
adj.
3. alkaline.
[1300–50; < Middle French alcali < dial. Arabic al-qalī, saltwort ashes]

al·ka·li

(ăl′kə-lī′)
Plural alkalis or alkalies
A chemical that acts like a base and reacts strongly with acids, especially a hydroxide or carbonate of an alkali metal.

alkali

A solution of a substance in water which has a pH of more than 7 and has an excess of hydroxyl ions in the solution.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alkali - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
pyridine - a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
purine - a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
purine - any of several bases that are derivatives of purine
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
glyoxaline, imidazole, iminazole - an organic base C3H4N2; a histamine inhibitor
cyanuramide, melamine - a white crystalline organic base; used mainly in making melamine resins
pyrimidine - any of several basic compounds derived from pyrimidine
2.alkali - a mixture of soluble salts found in arid soils and some bodies of wateralkali - a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
Translations
فِلِز قَلَوي
zásada
alkalibase
lúg
basi
šarmasšarminis
sārms
alkali

alkali

[ˈælkəlaɪ] N (alkalis, alkalies (pl)) → álcali m

alkali

[ˈælkəlaɪ] nalcali m

alkali

n pl <-(e)s> → Base f, → Lauge f; (metal, Agr) → Alkali nt

alkali

[ˈælkəlaɪ] nalcali m inv

alkali

(ˈӕlkəlai) noun
a substance, the opposite of acid, such as soda.
ˈalkaline (-lain) adjective
References in classic literature ?
We started across at eight in the morning, pushing through sand that had no bottom; toiling all day long by the wrecks of a thousand wagons, the skeletons of ten thousand oxen; by wagon-tires enough to hoop the Washington Monument to the top, and ox-chains enough to girdle Long Island; by human graves; with our throats parched always, with thirst; lips bleeding from the alkali dust; hungry, perspiring, and very, very weary--so weary that when we dropped in the sand every fifty yards to rest the horses, we could hardly keep from going to sleep--no complaints from Oliver: none the next morning at three o'clock, when we got across, tired to death.
Neither did I put any sal-soda, or other acid or alkali, into my bread.
He dragged you through an Arkansas post-oak swamp, let you dry for a moment on the alkali plains of his Idaho ranch, then whirled you into the society of Viennese archdukes.
He dropped a piece of litmus paper into an acid, when it changed instantly to red, and on floating it in an alkali it turned as quickly to blue.
And she saw Daisy thereafter, through days of alkali and heat, walking, stumbling, in the dust of the wagons, the little sick dog, like a baby, in her arms.
There are swift-flowing rivers which dash through jagged canons; and there are enormous plains, which in winter are white with snow, and in summer are grey with the saline alkali dust.
As far as the eye can reach stretches the great flat plain-land, all dusted over with patches of alkali, and intersected by clumps of the dwarfish chaparral bushes.
Here and there there are scattered white objects which glisten in the sun, and stand out against the dull deposit of alkali.
Far away on the extreme verge of the alkali plain there rose up a little spray of dust, very slight at first, and hardly to be distinguished from the mists of the distance, but gradually growing higher and broader until it formed a solid, well-defined cloud.
One of the first studies of alkali activated fly ash concerned the synthesis of zeolites.
South Shields-based Red Square Residential leased the unique property, the Alkali pub on Swinburne Street, from owner Les Southall when it was offered for sale in 2009, and have now reached the final stages of a major investment project.
In the present paper, results of alkali reactivity tests for selected silica aggregates, both rapid and slow alkali reactive, with the use of ASTM procedures, have been presented.