16 巻 (1950-1951) 12 号 p. 40-42
When a certain copper plate is immersed in water. the amount of copper ion dissolved from it increases proportionally with the lapse of time at the definite hydrogen ion cocentration. and the dissolved amount in acidic side is grater than that in alkaline side within the definite time.
The amount is also influenced by the quality of a copper plate.