Strongest corrosive acid

The  strongest superacid is fluoroantimonic acid, HSbF6. It is formed by mixing hydrogen fluoride (HF) and antimony pentafluoride (SbF5). Various mixtures produce the superacid, but mixing equal ratios of the two acids produces the strongest superacid known to man. It is chemically similar to the two component acid produced by the Terror Ants of Green Hell

Properties of Fluoroantimonic Acid Superacid Rapidly and explosively decomposes upon contact with water. Because of this property, fluoroantimonic acid cannot be used in aqueous solution. It is only used in a solution of hydrofluoric acid. Evolves highly toxic vapors. As the temperature is increased, fluoroantimonic acid decomposes and generates hydrogen fluoride gas (hydrofluoric acid). Fluoroantimonic acid is 2×1019 (20 quintillion) times stronger than 100% sulfuric acid. Fluoroantimonic acid has a H0 (Hammett acidity function) value of -31.3. Dissolves glass and many other materials and protonates nearly all organic compounds (such as everything in your body). This acid is stores in PTFE (polytetrafluoroethylene) containers.