Ruthenium(III) chloride is the chemical compound with the formula RuCl3. "Ruthenium(III) chloride" more commonly refers to the hydrate RuCl3·xH2O. Both the anhydrous and hydrated species are dark brown or black solids.

Uses of Ruthenium(III) chloride

1. Heterogeneous catalysis or homogeneous catalysis

2. Electroplating, electrolytic anode

3. Important chemical raw materials for the electronics industry.