Rhodium CAS#7440-16-6

1) High catalytic activity and selectivity, long life. Rhodium and its alloys, rhodium-containing compounds, complex catalysts can be used for the production of aldehydes and acetic acid, automotive exhaust gas purification, ammonia oxidation of nitric acid production, organic chemical synthesis of plastics, man-made fibers, drugs, pesticides, etc., fuel cell electrodes.
(2) High and stable reflectivity to visible light. It is often used for coating reflective surfaces such as special industrial mirrors, searchlights, and radars.
(3) High melting point, oxidation resistance, corrosion resistance, is one of the most stable metals. Can be used as a corrosion-resistant container, the atmosphere can be used at a high temperature of 1850 ° C, pure rhodium crucible can be used to produce calcium tungstate and lithium niobate single crystal.4) Rhodium plating has high hardness (7500~9000MPa), wear resistance, corrosion resistance, and stable contact resistance. Rhodium-plated composites are excellent electrical contact materials, and rhodium can also be used in the plating of jewelry and other industrial instruments and gas-sensitive components.
(5) Modification effect. Rhodium can form a solid solution with platinum, palladium and other metals, which plays a solid solution strengthening effect on the matrix, improves the melting point, recrystallization temperature and corrosion resistance of the matrix, and reduces oxidation volatilization losses, of which platinum rhodium alloy is an excellent precious metal temperature measurement material; Compounds formed by rhodium and titanium, zirconium, hafnium, tantalum, niobium and other metals have a diffusion strengthening effect on rhodium-containing alloys and increase thermal stability; Iridium plus rhodium improves iridium’s processability.
(6) The processing hardening rate is high, and it can be cold processed after hot processing to a certain size.
(7) Expensive, except for special use, usually only used as an added element.