Beryllium bromide

White odorless powder

Fixed

3.465 g · cm -3 ( 20 ° C)

• 506-509 ° C
• Sublimes at 473 ° C

520 ° C

• Water
• Soluble in ethanol

Risk

-353.5 KJ / mol

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Berylliumbromid is the Berylliumsalz of hydrobromic acid.

Production

Berylliumbromid is produced by the action of gaseous bromine to a mixture of beryllium oxide and carbon at 1100 to 1200 ° C. In this case, carbon monoxide is free.

It can also be produced from the elements or of beryllium and elemental bromine at 500-700 ° C.

Also, the reaction of beryllium oxide and hydrogen bromide is possible.

Properties

Berylliumbromid is a very hygroscopic white powder, which crystallizes in the orthorhombic system. The lattice parameters a = 10.32 Å be, b = 5.52 Å and c = 5.54 Å. Its enthalpy of fusion is 9.80 kJ / mol. In the vapor phase, it exists as a dimer.