Datsenko V. Physical - chemical regularities of chemical and electrochemical dissolution of copper in cuprammonium solutions

Investigation objects: process of copper dissolution in copperammonium solutions. Purpose: the investigation of chemical and electrochemical dissolution of copper in copperammonium solutions. Methods: cyclovoltammperometry, chronoamperometry, galvanometry, X-raing of phase, electron focusedbeam microscopy, titrimetri, gravimetri. Have been estimated. the of copper dissolution according the catalytic mechanism have been estimated. The layer anodic copper passivations have been investigated. The principles of intensification of copper etching processes were formulated and the variants of regenerations of exhausted etching solutions were proposed. Degree of application: the new compositions of etching solutions, the methods of regeneration and treatment of exhausted etching solution may be used at the enterprises of Ukraine.