Study of the formation of complexes of 2-methoxyphenol with ferrum (III) ion or hexacyanoferrum (III) ion. Kinetic studies have shown that the order of reaction for ferrum ion or ferrum hexacyanoion is close to one. The order of reaction for 2-methoxyphenol is 0.8 in the reaction with ferrum (III) ion and close to zero in the reaction with ferrum (III) hexacyanoion. It has been shown that the formed complexes are stable in acidic solution at pH less than 7 and rapidly decompose in alkaline solution. The complex of iron ion with 2-methoxyphenol decomposes into 2-methoxyphenol and ferrum hydroxide at pH above 8. At the same time, the rapid oxidation of 2-methoxyphenol is observed with increasing pH of the solution of the hexacyanoiron ion complex with 2-methoxyphenol. The found Kp values for the interaction of ferrum ion with 2-methoxyphenol are much higher than for the reaction with hexacyanoferrum ion.
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