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The kinetics of the anodic process at platinum in KF-NaF-AlF 3 -Al 2 O 3 melts in the temperature range 725-800°C is studied using potentiostatic polarization. Platinum is considered as an indifferent oxy gen evolving electrode, and a two stage scheme is proposed for the anodic process on it. According to this scheme, primary charge transfer with the formation of adsorbed O ads particles is accompanied by their des orption according to a physical or an electrochemical mechanism. The polarization dependences of the anodic process on platinum are calculated under stationary conditions with allowance for the predominance of different stages of the process and a desorption mechanism. The calculated and experimental stationary anodic polarization dependences are compared.

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