抄録
The following experimental results were obtained by chemical analysis, DTA, TGA, X-ray diffractiometry, using infrared spectrometer, etc.
(1) The hydrated chromium oxide film electrolytically formed on cathode from aqueous solution of single chromic acid was composed of chromium hydroxide with chromic anhydride adsorbed thereon.
(2) The water content on chromium hydroxide in hydrated chromium oxide film was 33.5% and content of chromium anhydride adsorbed on the film was 16.5%
(3) The approximate structural formula of the hydrated chromium oxide film was as follows:
(CrO3)(Cr2O3)2⋅10H2O
