Rubidium iodide is a salt with a

melting point The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends ...

of 642 °C. Its chemical formula is Rb I. Rubidium iodide can be formed from the reaction of

rubidium Rubidium is the chemical element with the symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali metal in the group to have a density hig ...

and

iodine Iodine is a chemical element with the Symbol (chemistry), symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at , ...

: :2 + → 2

References

* ''CRC Handbook of Chemistry and Physics'', 77th edition Rubidium compounds Iodides Metal halides Alkali metal iodides Rock salt crystal structure {{inorganic-compound-stub