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Studies of the Properties of Silver Cyanide Complexes
Author(s) -
Azzam A. M.,
Shimi I. A. W.
Publication year - 1963
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19633210510
Subject(s) - cyanide , enthalpy , chemistry , ion , solubility , cyanide ion , standard enthalpy change of formation , inorganic chemistry , standard enthalpy of formation , thermodynamics , analytical chemistry (journal) , organic chemistry , physics
The potential, which a silver wire acquires in contact with Ag + ions in concentrated solutions of KCN, was studied potentiometrically. The solubility products or the instability constants of the following reactions have been calculated:Normal potential values corresponding to the preceding equilibria were evaluated as +0.136, −0.135, −0.407 and −0.498 V. respectively. The corresponding free enthalpy values were calculated as 20.69, 21.51, 27.76 and 29.86 kcal per mole. This could be looked upon as the first published inclusive data on the Ag(CN) 2− 3ion.