Ik snap dit niet, krijg je niet gewoon een bekerglas vol koperhydroxide dat niet oplosbaar is in water?
The structural evolution and electrochemical properties of the textured Cu2O thin films from Lee etc wrote:The solution for electrochemical deposition consisted of 90 g copper (II)sulfate pentahydrate (Showa) and 150 ml lactic acid (85%).
The lactic acid was used as a complex to stabilize Cu2+ in alkaline solution. After few minutes, 450 ml of 5 M NaOH was added into the stirring copper lactate solution.
With an overnight stirring, the final bath pH was adjusted from 9 to 12 by appropriately controlling the amount of NaOH solution.