Rubidium fluoride

There are several methods for synthesising rubidium fluoride. One involves reacting rubidium hydroxide with hydrofluoric acid: :RbOH + HF → RbF + H2O Another method is to neutralize rubidium carbonate with hydrofluoric acid: :Rb2CO3 + 2HF → 2RbF + H2O + CO2 Another possible method is to react rubidium hydroxide with ammonium fluoride: :RbOH + NH4F → RbF + H2O + NH3 The least used method due to expense of rubidium metal is to react it directly with fluorine gas, as rubidium reacts violently with halogens: :2Rb + F2 → 2RbF == Properties ==

The enthalpy of solution of rubidium fluoride was determined to be −24.28 kJ/mol. Rubidium fluoride has a purple or magenta red flame test. == Related compounds ==

In addition to simple rubidium fluoride, an acidic rubidium fluoride with the molecular formula HRbF2 is also known, which can be produced by reacting rubidium fluoride and hydrogen fluoride. ==References==