chlorate: Perchloric Acid and Its Salts

Perchloric Acid and Its Salts

Perchloric acid, HClO4, is a volatile, unstable, colorless liquid that is a strong, corrosive acid and a powerful oxidizing agent, especially when hot. It explodes if heated to about 90℃ or on contact with combustible materials. The monohydrate, HClO4·H2O, is fairly stable and forms needlelike crystals that melt at 50℃. It explodes if heated to 110℃. The dihydrate, HClO4·2H2O, is a stable liquid that boils at 200℃.

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