presence of ozone. The mechanism is similar to that of protolysis of alkanes, with an electrophilic insertion into the single σ bonds of the alkane. The hydrocarbon–ozone complex transition state has the form of a penta-coordinated ion. Alcohols, ketones, and aldehydes are oxygenated by electrophilic insertion as well. Safety As with all strong acids, and especially superacids, proper personal protective equipment should be used. In addition to the obligatory gloves and goggles, the use of a faceshield and full-face respirator are also recommended. Predictably, magic acid is highly toxic upon ingestion and inhalation, causes severe skin and eye burns, and is toxic to aquatic life. See also Fluoroantimonic acid, the strongest known superacid References Superacids Antimony(V) compounds Sulfonic acids Fluoro complexes