Magnesium perchlorate

• Perchlorsaures magnesium
• Perchloric Acid Magnesium

White, odorless powder

Fixed

2.60 g · cm -3 ( 25 ° C)

Decomposition at 251 ° C

Well in water (500 g · l-1 at 25 ° C)

Risk

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Magnesium perchlorate is the magnesium salt of perchloric acid HClO4. It is a chemical solid with the formula Mg ( ClO4 ) 2

Properties

Magnesium perchlorate is a strong oxidizer and is oxygen when heated from. Therefore, it is strongly oxidizing. With combustible compounds of magnesium perchlorate forms explosive mixtures, which are very sensitive to impact and possibly already detonate amalgamation. The preparation of such mixtures therefore prohibits itself from magnesium perchlorate containing more than 2% contains combustible contaminants covered by the Explosives Act.

Magnesium perchlorate is extremely hygroscopic. The water vapor partial pressure over anhydrous magnesium perchlorate (so-called Anhydrone ) is only 70 mPa, the above dihydrate ( Mg ( ClO4 ) 2.2 H2O, Dehydrit ) 300 mPa at 20 ° C (compared to 3 mPa over phosphorus ( V) oxide ). It is therefore used as a desiccant for inoxidable material as it also has a high drying capacity. The water absorption is a very exothermic process.