Title: Magnesium Perchlorate
CAS Registry Number: 10034-81-8
Trademarks: Anhydrone; Dehydrite
Molecular Formula: Cl2MgO8
Molecular Weight: 223.21
Percent Composition: Cl 31.77%, Mg 10.89%, O 57.34%
Line Formula: Mg(ClO4)2
Properties: White, very hygroscopic, granular or flaky powder; dec above 250°. Dissolves in water with evolution of a considerable amount of heat. Crystallizes from water with 6H2O. Keep tightly closed.
CAUTION: Can cause irritation of skin, mucous membranes.
Use: As a drying agent for gases. The article of commerce may contain an amount of water equivalent to a dihydrate, but even the trihydrate is said to be effective for drying gases.