RUBIDIUM HYDROXIDE RbOH

Properties Rubidium hydroxide RbOH:

White, thermally stable, melting without decomposition, volatile at a strong heat. Readily soluble in water with a high exo-effect, creates a highly alkaline environment. Exhibits the properties basic hydroxides (refers to alkali), is neutralized by acid, reacts with acidic oxides, oxygen and ozone.


Obtaining rubidium hydroxide RbOH:

2Rb + 2H2O = 2RbOH + H2↑.

4Rb + O2 + 2H2O = 4RbOH (normal temp.).

2RbO2 + H2O = RbOH + RbHO2 (solution) + O2↑ (0° C),

2RbHO2 → (time) → 2RbOH + O2↑ (normal temp.).

4RbO2 + 2 H2O (hot) = 4RbOH + 3O2↑.

Rb2CO3 + Cа(OH)2 (saturated) = 2RbOH + CаCO3↓.

Rb2SO4 + BaE2 = BaSO4↓ + 2RbE  (E = Cl-, OH-).


Сhemical reactions with rubidium hydroxide RbOH:

RbOH·2H2O = RbOH·H2O + H2O (47—54° C, vacuum),

RbOH·H2O = RbOH + H2O (300° C,in the stream H2).

RbOH (diluted) + 6 H2O = [Rb(H2O)6]+ + OH-.

RbOH + HCl(diluted) = RbCl + H2O,

2RbOH + H2SO4(diluted) = Rb2SO4 + H2O,

RbOH + HNO3(diluted) = RbNO3 + H2O.

4RbOH (liquid) + 3O2 = 4RbO2 + 2H2O (450° C),

4RbOH + 4O3 = 4RbO3 + O2 + 2H2O (20° C).

2RbOH( conc.) + CO2 = Rb2CO3 + H2O.

RbOH(liquid) → Electrolysis → 4Rb (on cathode) + O2↑(on anode) + 2H2O.
 

Did you know?

The only elements that are liquid at room temperature are bromine and mercury. However, you can melt gallium by holding a lump in the warmth of your hand.