Rhodium
Rhodium
Rhodium (/ˈroʊdiəm/ ROH-dee-əm) is a chemical element with the symbol Rh and atomic number 45. It is a rare, silvery-white, hard, corrosion-resistant, and chemically inert transition metal. It is a member of the platinum group.
Etymology
The name Rhodium comes from the Greek word "rhodon" (ῥόδον), meaning rose, due to the rose-red color of its salts. It was discovered in 1803 by William Hyde Wollaston.
Properties
Rhodium is a hard, silvery, durable metal that has a high reflectance. It is not attacked by most acids. It is one of the most precious and rarest metals.
Uses
Rhodium is used in catalytic converters, which convert harmful gases from auto exhaust into less harmful substances. It is also used in jewelry, for its reflective properties, and in electrical connections.
Health Effects
Rhodium compounds are not particularly dangerous or toxic, but they are not known to have any beneficial health effects either.
Related Terms
External links
- Medical encyclopedia article on Rhodium
- Wikipedia's article - Rhodium
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