Rhodium(III) chloride
![](/Images/godic/202502/07/Rhodium_trichloride_structure3122.png")
![](/Images/godic/202502/07/Rhodium-trichloride-layer-from-xtal-1964-3D-balls3122.png")
![Structure of cyclooctadiene rhodium chloride dimer, which is prepared from hydrated rhodium trichloride.](/Images/godic/202502/07/Cyclooctadiene-rhodium-chloride-dimer-3D-balls3122.png")
Rhodium(III) chloride refers to inorganic compounds with the formula RhCl3(H2O)n, where n varies from 0 to 3. These are diamagnetic solids featuring octahedral Rh(III) centres. Depending on the value of n, the material is either a dense brown solid or a soluble reddish salt. The soluble salt is widely used to prepare compounds used in homogeneous catalysis, notably for the industrial production of acetic acid.