Magnesium Hydride
Title: Magnesium Hydride
CAS Registry Number: 60616-74-2
Molecular Formula: H2Mg
Molecular Weight: 26.32
Percent Composition: H 7.66%, Mg 92.34%
Literature References: Prepd by thermal decompn of diethylmagnesium at 200° in high vacuum: Wiberg, Bauer, Ber. 85, 593 (1952); from the elements: Ellinger et al., J. Am. Chem. Soc. 77, 2647 (1955).
Properties: White, nonvolatile mass or tetragonal crystals. d 1.45. Dec at 280° in high vacuum. Strong reducing agent. Ignites spontaneously on contact with air, forming MgO and H2O. On contact with water a violent evolution of hydrogen takes place. On contact with methanol, magnesium alcoholate and hydrogen are formed. Forms double hydrides with boron hydride and aluminum hydride.
Density: d 1.45

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