Beryllium hydride.

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What is the Beryllium hydride. ?

Beryllium hydride. is , while it's Molecular Formula is BeH2. Beryllium hydride (BeH2) liberates hydrogen gas when mixed with water. It is used as a source of hydrogen in experimental rockets and fuel cells.

What is the CAS number for Beryllium hydride. ?

The CAS number of Beryllium hydride. is 7787-52-2.

More information of Beryllium hydride. 7787-52-2 are:

What is Beryllium hydride. (7787-52-2) used for?

BeH2 was first synthesized in 1951 by reacting dimethylberyllium, Be(CH3)2, with lithium aluminum hydride, LiAlH4. A purer grade of BeH2 can also be formed from the pyrolysis of di-tert-butylberyllium, {Be(C(CH3)3)2} at 210°C. The purest beryllium hydride is obtained by the reaction of triphenylphosphine, i.e. PPh3,with berylliumborohydride,Be(BH4)2 by the reaction: Be(BH4)2+2PPh3→2Ph3PBH3 + BeH2 Note that unlike the other elements in Group IIA where the hydride can be prepared by reaction of the elements, the reaction of the metal with hydrogen to produce beryllium hydride has not proved possible. BeH2 is usually formed as an amorphous white solid, but a hexagonal crystalline form with a higher density (~0.78 g/cm3) has also been reported. This was prepared by heating amorphous BeH2 under pressure, with 0.5–2.5% LiH as a catalyst. A more recent investigation found that crystalline beryllium hydride has a bodycentered orthorhombic unit cell, containing a network of corner-sharing BeH4 tetrahedra (there are 12BeH2 molecules in the unit cell) in contrast to the flat, hydrogen-bridged, infinite chains previously thought to exist in crystalline BeH2. Studies of the amorphous form also find that it consists of a network of cornershared tetrahedra. The density is 0.755 g/cm3.

InChI:InChI=1/Be.2H/q+2;2*-1

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