Rubidium bromide

Cubic

Rb, Br

Rubidium ( I) bromide

White, odorless solid

Fixed

3.35 g · cm -3

682 ° C

1340 ° C

Well in water (980 g · l-1 at 5 ° C)

1,553

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Rubidium is a chemical compound of rubidium and bromine. It is a white salt.

Properties

The solubility of rubidium in water is given in the adjacent table. The solubility in acetone of 0.0505 g / kg at 18 ° C, and 0.047 g / kg at 37 ° C.

Rubidium bromide crystallizes in the sodium chloride structure. The crystals belong to the space group Fm3m with lattice parameter a = 689 pm, and four formula units per unit cell. The refractive index of the crystals is nD = 1.5528.

The standard enthalpy of rubidium is ΔfH0298 = -389.50 kJ · mol -1, the standard enthalpy of Free ΔG0298 = -378.40 kJ · mol -1, and the molar Standardentropie S0298 = 108.35 J · K-1 · mol -1.

Production and representation

Rubidium bromide can be obtained by the reaction of hydrogen bromide and rubidium hydroxide:

More response options are:

Use

Rubidiumhalogenide as rubidium chloride, rubidium bromide and Rubidiumiodid be therapeutically used as pain killers and sedatives, as well as an antidepressant.