Rhodium is a chemical element with symbol Rh and atomic number 45. Rhodium is a noble metal, resistant to corrosion, found in platinum or nickel ores together with the other members of the platinum group metals.
R 4770 (OTTO) Rhodium foil, 0.025 mm thick, 99.9% Cas 7440-16-6 - used in furnace windings, bushings for glass fiber production, thermocouple elements, electrodes for aircraft spark plugs, and laboratory crucibles.