Abstract: A process for producing trifluoroacetic acid and trifluoroacetyl chloride from 1,1-dichloro-2,2,2-trifluoroethane, oxygen and water as starting materials, characterized in that the starting materials are reacted in a vapor phase in a reactor of perfect mixing type to avoid local heating, under a condition not to liquefy the starting materials and reaction products, while continuously supplying the starting materials and continuously withdrawing the reaction products, so as to obtain a reaction mixture comprising trifluoroacetyl chloride as the main product and trifluoroacetic acid as an accompanying product.

Abstract: The invention relates to an electric double layer capacitor in which a metallic piece for a case at the side of an anode is formed with an aluminum layer. The aluminum layer has an electrochemically stable anodized film according to an applied voltage and has so low a resistance as not to present any practical problem. This property is effectively utilized to impart a breakdown voltage not less than 3 V to the capacitor.

Abstract: An electrolytic capacitor comprises a pair of lead plates of electrically conductive metal electrically isolated from each other and arranged to intersect perpendicularly to each other, and a plurality of divided capacitor elements connected to said lead plates to attain a low equivalent series resistance and a high ripple performance, whereby the electrolytic capacitor is adapted to be satisfactorily used at a high frequency range.