Noun
A rare element of the light platinum group. It is found in platinum ores, and obtained free as a white inert metal which it is very difficult to fuse. Symbol Rh. Atomic weight 104.1. Specific gravity 12.
Source: Webster's dictionaryAlthough the quantity at Sudbury is very small, the large amount of processed nickel ore makes rhodium recovery cost-effective. Source: Internet
Characteristics Palladium belongs to group 10 in the periodic table, but the configuration in the outermost electron shells is atypical for group 10 (see also niobium (41), ruthenium (44), and rhodium (45)). Source: Internet
Diluted nitric acid dissolved all but palladium and rhodium. Source: Internet
However, the extraction is complex and expensive, and the presence of rhodium radioisotopes requires a period of cooling storage for multiple half-lives of the longest-lived isotope (about 10 years). Source: Internet
Palladium and rhodium prices have been in the stratosphere throughout 2020 with palladium reaching $2815.50 in late February and rhodium moving to the $12,000 per ounce level, both new record levels for the platinum group metals. Source: Internet
In 2007, rhodium cost approximately eight times more than gold, 450 times more than silver, and 27,250 times more than copper by weight. Source: Internet