Ruthenium(II) chloride is an inorganic compound, a metal salt of ruthenium and hydrochloric acid with the formula RuCl2.
[1][2] Ruthenium(II) chloride forms brown crystals.
Ruthenium(II) chloride is poorly soluble in cold water, but is soluble in ethanol.
Ruthenium(II) chloride can form complexes with aromatic hydrocarbons.
[4] The compound can be reduced to elemental ruthenium by hydrogen.