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TOEFL BNC: 13261 COCA: 28494

alkali

Word family 
Related topics: Chemistry
al·ka·li /ˈælkəlaɪ/ noun [countableC, uncountableU]  
HCa substance that forms a chemical salt when combined with an acid 碱 → acid
Examples from the Corpus
alkali• Amines can be prepared by heating and alkyl ammonium salt with an alkali.• When an acid and alkali react together the result is a salt and water.• A different alkali would have been used for the manufacture of later soda glasses.• Electron microprobe element maps show the distribution and quantity of alkali feldspar in the fine-grained groundmass of the altered basalts.• By 1880 he was recognized as an international authority on alkali manufacture.• This is consistent with glass technology at the time-the principal alkali used was also soda.• In 1895 he entered the alkali business.
Origin alkali
(1300-1400) Medieval Latin Arabic al-qili “the ashes (of a particular plant from which a type of alkali was obtained)”
al·ka·li noun
Chinese
Syllable
Corpus
TOEFL BNC: 13261 COCA: 28494
TOEFL BNC: 13261 COCA: 28494
TOEFL BNC: 13261 COCA: 28494
alkali
Types of chemical substance: acid, alkali, base...

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