Alkali Definition & Meaning - Merriam-Webster
The meaning of ALKALI is a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly : a substance (such as a hydroxide or carbonate of an alkali metal) having marked basic properties.
Alkali - Wikipedia
In chemistry, an alkali (/ ˈ æ l k ə l aɪ /; from the Arabic word al-qāly, القلوي) is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0.
Alkali | Chemical Compound, Properties & Uses | Britannica
Alkali, any of the soluble hydroxides of the alkali metals—i.e., lithium, sodium, potassium, rubidium, and cesium. Alkalies are strong bases that turn litmus paper from red to blue; they react with acids to yield neutral salts; and they are caustic …
ALKALI definition and meaning | Collins English Dictionary
An alkali is a substance with a pH value of more than 7. Alkalis form chemical salts when they are combined with acids.
Alkalis - definition of alkalis by The Free Dictionary
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 …
ALKALI Definition & Meaning | Dictionary.com
A hydroxide of an alkali metal. The aqueous solution of alkalis is bitter, slippery, caustic, and characteristically basic in reactions.
Alkali - Simple English Wikipedia, the free encyclopedia
An alkali is where a base is dissolved in water. Often it is the salt of an Alkali metal. An alkali is the opposite to an acid and can be neutralised (brought down to pH 7) by adding acid.
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