alkali


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al·ka·li

, pl.

alkalies

,

al·ka·lis

(al'kă-lī, al'kă-līz),
1. A strongly basic substance yielding hydroxide ions (OH- in solution); for example, sodium hydroxide, potassium hydroxide.
2. Synonym(s): base (3)
3. Synonym(s): alkali metal
[Ar., al, the, + qalīy, soda ash]

alkali

/al·ka·li/ (al´kah-li) any of a class of compounds with pH greater than 7.0, which form soluble soaps with fatty acids, turn red litmus blue, and form soluble carbonates, e.g., hydroxides or carbonates of sodium or potassium.

alkali

[al′kəlī]
Etymology: Ar, al + galiy, wood ash
a compound with the chemical characteristics of a base. Usually used with reference to hydroxides of Group I metals and ammonium, alkalis combine with fatty acids to form soaps, turn red litmus blue, and enter into reactions with carbon dioxide that form water-soluble carbonates. See also acid, base. -alkaline, adj., alkalinity, n., alkalinize, alkalize, v.

al·ka·li

, pl. alkalies, pl. alkalis (al'kă-lī, -līz)
1. A strongly basic substance yielding hydroxide ions (OH-) in solution; e.g., sodium hydroxide, potassium hydroxide.
2. Synonym(s): base (3) .
3. Synonym(s): alkali metal.
[Ar., al, the, + qalīy, soda ash]

alkali

a soluble BASE or a solution of a base.

alkali

strongly basic substance yielding hydroxide (OH-) ions in solution, e.g. potassium hydroxide (KOH); sodium hydroxide (NaOH)

alkali,

n a compound able to form hydroxyl ions (OH) when dissolved in aqueous solutions. See also base.

al·ka·li

, pl. alkalies, pl. alkalis (al'kă-lī, -līz)
1. A strongly basic substance yielding hydroxide ions (OH-) in solution; e.g., sodium hydroxide, potassium hydroxide.
2. Synonym(s): base (3) .
3. Synonym(s): alkali metal.
[Ar., al, the, + qalīy, soda ash]

alkali (al´kəlī),

n a strong water-soluble base. A chemical substance that, in aqueous solution, undergoes dissociation, resulting in the formation of hydroxyl (OH) ions.

alkali

any one of a class of compounds such as sodium hydroxide that form salts with acids and soaps with fats; a base, or substance capable of neutralizing acids. Other properties include a bitter taste and the ability to turn litmus paper from red to blue. Alkalis play a vital role in maintaining the normal functioning of the body chemistry. See also acid-base balance, alkaline, base.

alkali disease
see selenium poisoning.
alkali reserve
the ability of the combined buffer systems of the blood to neutralize acid. The pH of the blood normally is slightly on the alkaline side, between 7.35 and 7.45. Since the principal buffer in the blood is bicarbonate, the alkali reserve is essentially represented by the plasma bicarbonate concentration. However, hemoglobin, phosphates and other bases also act as buffers. A lowered alkali reserve means a state of acidosis; increased reserve indicates alkalosis. Alkali reserve is measured by the combining power of carbon dioxide, which is the amount of carbon dioxide that can be bound as bicarbonate by the blood.
References in periodicals archive ?
Cane says female alkali bees are particular about where they'll nest, preferring, for example, moist basin-type soils with salty surfaces.
Tronox anticipates completing the sale of its Alkali business in the second half of 2017.
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Tronox Chairman and CEO Tom Casey said, "Together, Tronox and Alkali Chemicals will form a leading inorganic chemicals company, with more stable revenue, cash flow, and EBITDA streams and higher net income.
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Milk alkali syndrome was diagnosed based on clinical picture and laboratory findings.
2 represents corrosion of different glasses (weight loss) in strong alkali and strong acid while corrosion (alkali extracted) in water and in dilute sulfuric acid is shown in table No.
As the alkali activator, there were used two components: the pellet-form NaOH (98% purity) and the sodium silicate, which had the next composition comprising: 8% of [Na.
They were primarily engaged in the manufacture of soda ash (washing soda), a mild alkali, giving rise to the name of the pub.
The varying aggregate properties, in particular those related to the rate of the alkali reaction, make it necessary to apply standard testing methods and assessment criteria for the aggregate reactivity [1].
They had noticed that their crop yielded extra seed when planted near salt flats pockmarked with nesting holes from alkali bees (Nomia melanderi).