Rhodium is alloyed with platinum and palladium in electrodes for spark plugs, 

advanced laboratory equipment and in thermocouples. Rhodium compounds also 

have catalytic uses in automotive catalytic converters. High Purity (99.999%) 

Rhodium Oxide (Rh2O3) PowderRhodium is used as a plating metal in jewelry 

production to enhance the whiteness of white gold. Rhodium is available as metal 

and in compound forms with purities ranging from 99% to 99.999% (ACS grade to 

ultra-high purity).  High Purity (99.999%) Rhodium (Rh) Sputtering Target 

Elemental or metallic forms include pellets, rod, wire and granules for evaporation 

source material purposes. Rhodium nanoparticles and nanopowders provide ultra-

high surface area.Rhodium oxides is an insoluble rhodium source available in 

powder and dense pellet form for such uses as optical coating and thin film 

applications Rhodium fluoride is another insoluble form of for uses in which 

oxygen is undesirable such as metallurgy, chemical and physical vapor deposition 

and in some optical coatings. Rhodium is also available in soluble forms including 

chlorides, nitrates and acetates. These compounds can be manufactured as 

solutions at specified stoichiometries.