Issue 0, 1969

Oxidation of metal thiocyanates by nitric and nitrous acids. Part II. Kinetics

Abstract

The kinetics of the autocatalytic oxidation of thiocynate by nitric and nitrous acids have been followed by the increase in nitrite concentration. The rate laws observed are v=k3[H+][HNO2][NO3] and v=k4[H+]2[HNO2][NO3][SCN] at high and low concentrations of thiocyanate respectively. The mechanism postulated involves the formation of dinitrogen tetroxide, which oxidises isothiocyanic acid to hypothiocyanous acid, which is then converted to thiocyanogen. The end-products result from the hydrolysis of thiocyanogen, and its reaction with hydrogen cyanide.

Article information

Article type
Paper

J. Chem. Soc. A, 1969, 1148-1151

Oxidation of metal thiocyanates by nitric and nitrous acids. Part II. Kinetics

M. N. Hughes, E. D. Phillips, G. Stedman and P. A. E. Whincup, J. Chem. Soc. A, 1969, 1148 DOI: 10.1039/J19690001148

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