Abstract
WE have discovered marked pulses in the concentration of iodide ions, [I−], during the periodic decomposition of hydrogen peroxide in the acidic reaction system comprising iodine, iodate and intermediate compounds1–3. In one experiment, two sections of which are shown in Fig. 1, seventy-two pulses were recorded in the potential of an electrode selective for iodide ion (Model 94–53, Orion Research Inc., Cambridge, Mass.). Pulses in the rate of oxygen evolution, (dO2/dt), were simultaneously recorded as the electrical output of a mass flowmeter (model LF–20; Matheson and Co., East Rutherford, N.J.).
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Bray, W. C., J. Amer. Chem. Soc., 43, 1262 (1921).
Bray, W. C., and Liebhafsky, H. A., J. Amer. Chem. Soc., 53, 38 (1931).
Degn, H., Acta Chem. Scand., 21, 1057 (1967).
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WOODSON, J., LIEBHAFSKY, H. Pulses in Iodide Concentration during the Periodic Decomposition of Hydrogen Peroxide. Nature 224, 690 (1969). https://doi.org/10.1038/224690a0
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DOI: https://doi.org/10.1038/224690a0
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