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Studies on the composition and properties of metal ferrocyanogen complexes. II. Physico‐chemical studies on the Nature and Composition of Chromous Ferrocyanide
Author(s) -
Malik Wahid U.,
Abubacker K. M.
Publication year - 1959
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.19593010520
Subject(s) - potentiometric titration , conductometry , chemistry , titration , composition (language) , ferrocyanide , amperometry , reagent , inorganic chemistry , metal , amperometric titration , aqueous solution , chemical composition , alcohol content , alcohol , analytical chemistry (journal) , chromatography , electrochemistry , electrode , organic chemistry , linguistics , philosophy
Potentiometric, conductometric and amperometric titrations have been carried out between CrCl 2 and K 4 Fe(CN) 6 with varying concentrations of the reagents in aqueous and aqeous‐alcoholic media. While evidence for the formation of both K 2 CrFe(CN) 6 and Cr 2 Fe(CN) 6 was obtained from the first two methods, the amperometric titrations gave evidence only for the formation of K 2 CrFe(CN) 6 . From the discrepancies in the titre values (theoretical and determined), evidence for the role of adsorption in influencing the composition is obtained. The titre values approach the theoretical when measurements are done in presence of alcohol.