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DISSOCIATION ELECTROLYTIQUE [2 records]

Record 1 2011-06-01

English

Subject field(s)
  • Electrochemistry
  • Electrometallurgy
DEF

The dissociation of a substance into ions.

PHR

Electrolytic dissociation constant.

French

Domaine(s)
  • Électrochimie
  • Électrométallurgie
DEF

Processus électrochimique suivant lequel une partie des molécules d'un corps dissous est scindée en ions.

PHR

Constante de dissociation électrolytique.

Spanish

Campo(s) temático(s)
  • Electroquímica
  • Electrometalurgia
Save record 1

Record 2 2002-10-15

English

Subject field(s)
  • Atomic Physics
  • Analytical Chemistry
DEF

The ionization of a compound in a solution.

CONT

The whole subject of acid-base chemistry acquired a new look and a quantitative aspect with the advent of the electrolytic dissociation theory propounded by ... Ostwald and ... Arrhenius ....

PHR

ionization efficiency, ionization potential; thermally induced ionization.

French

Domaine(s)
  • Physique atomique
  • Chimie analytique
DEF

Décomposition d'une substance en ions.

CONT

Ces définitions [de l'ionisation] furent proposées séparément par Arrhenius et Ostwald [...] La théorie qui porte leur nom rend possible l'interprétation des équilibres intervenant entre les acides et les bases, et l'évaluation de la force des acides et des bases. [...]. Quantitativement, cette ionisation ou dissociation électrolytique a pour expression : H+ x A- sur HA= Ka [...]

OBS

La dissociation est la cause et l'ionisation le résultat mais dans la pratique ces deux termes se confondent.

Spanish

Campo(s) temático(s)
  • Física atómica
  • Química analítica
Save record 2

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