Rubidium hydride
Colorless prismatic needles
Fixed
2.65 g · cm -3
Decomposition at 300 ° C
Reacts with water
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Rubidiumhydrid is a chemical compound of rubidium and hydrogen.
Production
Rubidiumhydrid can be prepared by reaction of hydrogen and rubidium.
It is also formed by heating magnesium in a hydrogen stream.
Properties
Physical Properties
Rubidiumhydrid crystallizes in the cubic crystal system in the space group with the lattice parameters a = 604.9 pm, and four formula units per unit cell.
Chemical Properties
When heated in vacuum to Rubidiumhydrid decomposed into the elements. The compound is extremely reactive.
With water Rubidiumhydrid reacts to form hydrogen gas.
Also during the reaction with hydrogen chloride, hydrogen is released.
Carbon dioxide is produced Rubidiumformiat.
With sulfur dioxide formed during reaction under reduced pressure Rubidiumdithionit.
With elemental fluorine Rubidiumhydrid burns to hydrogen fluoride and rubidium. With elemental chlorine, the reaction mixture is ignited, however, the reaction does not proceed completely, and it remains a green mixed salt. Bromine and iodine react less violently.
With liquid ammonia is formed with evolution of hydrogen rubidium amides, at room temperature the reaction with gaseous ammonia from only very slowly.
Rubidiumhydrid reduced upon heating lead (II ) oxide to elemental lead, copper (II ) oxide is reduced to elemental copper.