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Identifiant pérenne de la notice : 040739155Copier cet identifiant (PPN)
Notice de type FMeSH

Point d'accès autorisé

Terres rares

Variantes de point d'accès

Earth Metals, Rare
[Nom commun]
Rare Earth Metals
[Nom commun]
Rare Earth Metal
[Nom commun]
Earth Metal, Rare
[Nom commun]
Metal, Rare Earth
[Nom commun]

Informations

Note publique d''information : 
A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition, they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust

Note générale sur le champ d'application : 
general or unspecified; prefer specifics

Point d'accès autorisé parallèle

Metals, Rare Earth

Identifiants externes

Identifiant MeSH : mesD008674

Utilisation dans FMeSH

Qualificatifs autorisés : IP / IM / PK / TU / AG / BL / CF / CS / CH / UR / RE / HI / AN / CL / EC / PD / ST / AD / AI / SD / PO / AE / TO / ME76; was NON MESH before 1976

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