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7440-22-4 [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-02-04

English

Subject field(s)
  • Chemistry
Universal entry(ies)
Ag
symbol
7440-22-4
CAS number
CONT

Atomic number 47, Atomic weight 107.880; melting point 961°, boiling point 2193° ... Silver occurs native, ... occasionally nearly pure but more often together with gold and copper ... Silver is a pure white, malleable, ductile metal, which can be beaten into [very thin] leaves ... Silver is used extensively in electrical work, jewellery, and as a coinage metal. Silver compounds are used in photography and as catalysts for many processes.

OBS

Various forms of the metal, pure or mixed with other substances, are distinguished by defining terms, as antimonial, bromic, horn, native, red, ruby silver; capillary, shell silver, etc. The name is also given to several natural or artificial substances resembling or imitating the real metal, as cat, German, inflammable, mock silver.

OBS

silver: term adopted by Environment Canada; used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).

French

Domaine(s)
  • Chimie
Entrée(s) universelle(s)
Ag
symbol
7440-22-4
CAS number
DEF

Métal précieux blanc à structure cubique, brillant, très ductile, de numéro atomique 47, de masse atomique 107,86.

OBS

argent : 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
Entrada(s) universal(es)
Ag
symbol
7440-22-4
CAS number
DEF

Metal precioso, número atómico 47, que se emplea principalmente para monedas y para objetos de joyería y orfebrería.

Save record 1

Record 2 2010-11-10

English

Subject field(s)
  • Geochemistry
  • Chemical Elements and Compounds
Universal entry(ies)
Ag2S
formula, see observation
7440-22-4
CAS number
CONT

Silver sulfide (or silver sulphide in British English), Ag2S, is the sulfide of silver. It is black and constitutes the tarnish that forms on silver when exposed to the hydrogen sulfide of the atmosphere.

OBS

Chemical formula: Ag2S

Key term(s)
  • Ag-sulfide

French

Domaine(s)
  • Géochimie
  • Éléments et composés chimiques
Entrée(s) universelle(s)
Ag2S
formula, see observation
7440-22-4
CAS number
CONT

De couleur noire, le sulfure d'argent se forme par l'action du H2S ou lorsqu'un objet d'argent est en contact avec un produit riche en soufre.

OBS

Métaux, Nomenclature de Bruxelles.

OBS

Formule chimique : Ag2S

Spanish

Save record 2

Record 3 1993-01-28

English

Subject field(s)
  • Chemistry
Universal entry(ies)
7440-22-4
CAS number

French

Domaine(s)
  • Chimie
Entrée(s) universelle(s)
7440-22-4
CAS number

Spanish

Save record 3

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