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7439-98-7 [1 record]

Filter results by subject field Alphabetical list of terms

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Alphabetical list of terms

Record 1 - external organization data 2005-04-07

English

Subject field(s)
  • Chemistry
  • Geochemistry
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
Mo
symbol
7439-98-7
CAS number
DEF

A silvery-white, very hard, metallic element in the chromium group or group VI of the periodic system.

OBS

Its physical properties are similar to those of iron and its chemical properties are similar to those of a nonmetal.

OBS

molybdenum: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record; term adopted by Environment Canada, used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).

French

Domaine(s)
  • Chimie
  • Géochimie
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
Mo
symbol
7439-98-7
CAS number
DEF

[...] métal ayant l'aspect de l'acier [qui possède] un point de fusion très élevé (260 °C) et des propriétés analogues à celles du tungstène alors qu'il est près de deux fois plus léger que ce dernier, [sa densité étant de] 10,2.

OBS

Élément de numéro atomique 42; masse atomique 95,95.

OBS

molybdène : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche; terme retenu par Environnement Canada, utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA).

Spanish

Campo(s) temático(s)
  • Química
  • Geoquímica
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es)
Mo
symbol
7439-98-7
CAS number
OBS

Elemento químico de símbolo Mo, número atómico 42, masa atómica 95.94 y configuración electrónica (Kr)4d55s1, con 20 nucleidos, 7 de los cuales son estables. Forma cristales metálicos de estructura cúbica centrada en el espacio.

OBS

No aparece libre en la naturaleza. Inflamable en forma de polvo. No tóxico.

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