Magic Acid, H2SO3F+, is one of the inorganic superacids. This extremely strong acid has a pKa of 20 and is strong enough to protonate saturated alkanes to form carbonium ions. Magic Acid is made by mixing antimonypentafluoride (SbF55) and fluorosulphonic acid. It is considered a superacid and is called Magic Acid because of its strength.
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