The kinetics of the reaction between formaldehyde and hexacyanoferrate(II1) ion in alkaline medium has been investigated at four temperatures. The data show that the reaction is rapid initially, then follows a simple first order rate with respect to each of the hexacyanoferrate(II1) ion, formaldehyde, and hydroxide ion. Calculations reveal that only 0.27 % of the formaldehyde corresponds to the initial rapid reaction; the remaining 99.73 % follows the kinetics described. The net rate of the oxidation of formaldehyde as measured by the consumption of hexacyanoferrate(JI1) ion, is given by

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produced during the ozonolysis of unsymmetrical olefins, did not interfere with the measurements. It was found that the cis/trans distributions did not depend on the extent of the reaction. The given proportions (Tables V and VI) were calculated from five to seven independent experiments in each case and they are expressed with a 95 % confidence limit.

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