RUBIDIUM HYDROXIDE RbOHProperties 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. |
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Empirical formulas show the simplest whole number ratio of atoms in a formula.