Analytica Chimica Acta p. 137 - 151 (1951)
Update date:2022-08-11
Topics:
Schulek
Pungor
It has been observed that in E. Schulek's method for the iodometric determination of bromide via BrCN, ClCN is formed depending on the temperature and the pH. The yellow colour of the latter, and also its ability to oxidize iodide, disappear after a short while. Reaction-kinetic experiments have shown that the formation of yellow cyanogen chloride and its reaction with iodide ion is to be considered as a monomolecular collision reaction. Yellow cyanogen chloride represents the hitherto not observable electromeric form of CICN in which the chlorine has a certain amount of positive charge (Cl+O-CN).
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