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Platinum-Rhodium Alloy

Platinum-Rhodium Alloy (PtRh) is a platinum-based binary alloy with up to 30% Rhodium that is a continuous solid solution at high temperatures. Rhodium improves the thermoelectricity, oxidation resistance, and acid corrosion resistance of the alloy to platinum. As the concentration of rhodium increases, so does the chemical resistance and hardness of the alloy.
Typical Applications

Platinum-Rhodium Alloy is used as thermocoupler material. It also acts as a catalyst, crucible, spinner, high-temperature heating body, electrical contact, and spark plug electrode. It is also used as a winding material in electrical motors.

Packaging Options



Platinum-Rhodium Alloy (PtRh) TSCA (SARA Title III) Status: Listed. For further information, please call the E.P.A. Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902

Platinum-Rhodium Alloy (PtRh) CAS Number: 11107-71-4

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