The discussion centers on the chemical interaction between copper, sodium chloride (NaCl), and water (H2O). Participants debate whether any reaction occurs when these substances are combined. The consensus is that no immediate reaction takes place, especially if the solution is not exposed to air. However, if the solution is in contact with air, oxidation of copper may occur over time, potentially leading to the formation of patina or verdigris. One user experimented by applying a 6V potential, resulting in oxidation of the copper wire and the release of an unidentified gas, which they initially suspected to be hydrogen (H2) from water electrolysis. They noted that the pH remained neutral. The conversation encourages further exploration of gas identification and the effects of copper discoloration.
