Issue 0, 1969

Heterogeneous catalysis in solution. Part V. Catalysis by charcoal and silver iodide of the ethyl iodide–silver nitrate reaction

Abstract

The kinetics of the ethyl iodide–silver nitrate reaction in 0·02M-aqueous potassium nitrate solution at 5° were studied in the presence of charcoal and of silver iodide. The rates depended on the concentration of each substrate either raised to a fractional power, as in a Freundlich adsorption isotherm, or arranged in a form analogous to a Langmuir isotherm, and thus indicated a Langmuir–Hinshelwood mechanism. When the difference in surface areas was taken into account, silver iodide was found to be a more effective catalyst than charcoal by a factor of at least 40. The activation energies were 20 kcal. for the homogeneous reaction, 10.4 kcal. for the charcoal-catalysed process, and 8.5 kcal. for the reaction on the silver iodide surface.

Article information

Article type
Paper

J. Chem. Soc. B, 1969, 669-674

Heterogeneous catalysis in solution. Part V. Catalysis by charcoal and silver iodide of the ethyl iodide–silver nitrate reaction

J. M. Austin, O. D. E.-S. Ibrahim and M. Spiro, J. Chem. Soc. B, 1969, 669 DOI: 10.1039/J29690000669

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