Содержание
- 3. Discovery and naming In the early 1800s, Wollaston was studying an ore of platinum. Although scientists
- 4. Physical properties Rhodium is a silver-white metal. It has a melting point of 1,966°C (3,571°F) and
- 5. Chemical properties Rhodium is a relatively inactive metal. It is not attacked by strong acids. When
- 6. Occurrence in nature Rhodium is one of the rarest elements on Earth. Its abundance is estimated
- 7. Isotopes Only one naturally occurring isotope of rhodium is known, rhodium-103. Rhodium also has a number
- 8. Extraction Rhodium is usually obtained as a by-product in the recovery of platinum from its ores.
- 9. Uses Most of the rhodium metal sold in the United States is used to make alloys.
- 12. Compounds Compounds of rhodium are used as catalysts. A catalyst is a substance used to speed
- 13. Fluorides Rhodium trifluoride: RhF3 Rhodium hexafluoride: RhF6 Rhodium tetrafluoride: RhF4 Tetrarhodium eicosafluoride: [RhF5]4 Chlorides Rhodium trichloride:
- 14. Sulfides Rhodium disulphide: RhS2 Dirhodium trisulphide: Rh2S3 Selenides Rhodium diselenide: RhSe2 Tellurides Rhodium ditelluride: RhTe2 Carbonyls
- 15. Health effects There are no studies of the health effects from rhodium or its common compounds.
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