Molecular Formula C7H7RhO4；Rh(C5H7O2)(CO)2
CAS No. 14874-82-9
Rhodium is a silver-white metallic element, is highly resistant to corrosion, and is extremely reflective. It is used as a finish for jewelry, mirrors, and search lights. It is also used in electric connections and is alloyed with platinum for aircraft turbine engines. Another use is manufacturing of nitric acid and used in hydrogenation of organic compounds. Rhodium usage is dominated by automotive catalyst applications where it is used together with platinum and palladium to control exhaust emissions.
Rhodium is a actinic aspect that is a rare, silvery-white, hard, and chemically apathetic alteration metal and a affiliate of the platinum group. It has the actinic attribute Rh and diminutive amount 45. It is composed of alone one isotope, 103Rh. Naturally occurring rhodium is begin as the chargeless metal, adulterated with agnate metals, and never as a actinic compound. It is one of the rarest adored metals and one of the a lot of cher (gold has back taken over the top atom of amount per ounce).
Rhodium is a alleged blue-blooded metal, advancing to corrosion, begin in platinum- or nickel ores calm with the added associates of the platinum accumulation metals. It was apparent in 1803 by William Hyde Wollaston in one such ore, and called for the rose blush of one of its chlorine compounds, produced afterwards it reacted with the able acerbic admixture aqua regia.
The element's above use (about 81% of apple rhodium production) is as one of the catalysts in the three-way catalytic converters of automobiles. Because rhodium metal is apathetic adjoin bane and a lot of advancing chemicals, and because of its rarity, rhodium is usually adulterated with platinum or aegis and activated in high-temperature and corrosion-resistive coatings. White gold is generally argent with a attenuate rhodium band to advance its optical consequence while admirable argent is generally rhodium argent for befoul resistance.
Rhodium detectors are acclimated in nuclear reactors to admeasurement the neutron alteration level.
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