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Alphabet Game 2021


Pariah

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Fluoroantimonic acid is a mixture of hydrogen fluoride and antimony pentafluoride, containing various cations and anions (the simplest being H2F+  and SbF−
6). This substance is a superacid that can be in excess of a quadrillion times stronger than 100% pure sulfuric acid, depending on the proportion of its ingredients. It has been shown to protonate even hydrocarbons to afford pentacoordinate carbocations (carbonium ions).[1] Extreme care must be taken when handling fluoroantimonic acid. It is exceptionally corrosive, but can be stored in containers lined with PTFE (Teflon).

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