5678. Magnesium Perchlorate

Nomenclature

CAS number: 10034-81-8
Perchloric acid magnesium salt (2:1); Anhydrone; Dehydrite.
Cl2MgO8; mol wt 223.21.
Cl 31.77%, Mg 10.89%, O 57.34%.
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. Oxidizer. 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.