rhodium

Traductions

• anglais

  Date : 1983

  Définition

  An element. State: Solid; Group; VIII; Atomic No.: 45; Atomic Wt.: 102.90055; Valence; 3,4. Rhodium is one of the members of the so-called platinum group which comprises six of the nine transition metals in Grout VIII. It has about the same density as palladium, i.e., it is only about half as heavy as other metalsin this group.

  Note :

  It has a very high melting point, 1960 °C (3560 °F), and good electrical conductivity, which make it suitable for high-temperature alloys, electrical devices, furnace windings, and other refractory uses. It can also be electroplated and vacuum-deposited for coatings for specialized purposes. It has only one stable form.

  Termes :

  1. rhodium
  2. Rh

  [Rh] Symbol for the element rhodium, the name being derived from the Greek word for rose, or rose-colored, from the deep red color of the chlorine-containing sodium salt from which the element was originally extracted.