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Oxidation on the Nickel Hydroxide Electrode

G. Vertes ; Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary
G. Horanyi ; Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary
F. Nagy ; Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary


Puni tekst: engleski pdf 8.426 Kb

str. 21-29

preuzimanja: 335

citiraj


Sažetak

It has been shown that in alkaline solution alcoholic hydroxyl
is oxidized by the charged nickel hydroxide electrode -
similarly as by oxidation in the presence of nickel salt catalysts
or by »nickel peroxide« - to carboxylic acid.
An electrochemical method has been devised for the study
of the reaction rate, based on the potentiometric indication of the
depletion of NiOOH. It has been shown that the reaction rate is
proportional to the amount of NiOOH and the concentration of
the alcohol, but independent of the hydroxide ion concentration
and the electrode potential. An electrochemical procedure has been devised for the practical implementation of oxidation on NiOOH. In this way a number of primary alcohols may be oxidized with good yields. It
has been shown that the oxidation of the vitamin C intermediate
di-0-isopropylidene-sorbose can be performed electrochemically
with yields above 950/o and, according to estimates, economically
on an industrial scale.

Ključne riječi

Hrčak ID:

197283

URI

https://hrcak.srce.hr/197283

Posjeta: 459 *