superacid


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Related to superacid: Carborane superacid

superacid

[¦sü·pər′as·əd]
(chemistry)
An acidic medium that has a proton-donating ability equal to or greater than 100% sulfuric acid.
A solution of acetic or phosphoric acid.
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Since 1963 Olah and his coworkers have used superacid media, particularly [HSO.
15,16,17] In some cases, the superacid is also the oxidizing agent.
Other superacids that have been extensively studied include HF [8,9] for which [-H.
Many other applications of superacids in organic chemistry have been described by Olah [7].
A very early application of the use of superacids in inorganic chemistry was the demonstration that the nitronium ion is formed in a solution of nitric acid in sulfuric acid [4]
Subsequent work has shown that many other polyatomic cations of S, Se and Te can be obtained in superacids.