Discussion Overview
The discussion revolves around the electrolysis of a pregnant leach solution containing metals such as copper, iron, and cobalt. Participants explore whether all these metals will deposit on a copper cathode when using a lead anode in the electrolysis setup.
Discussion Character
- Exploratory, Technical explanation, Debate/contested
Main Points Raised
- One participant inquires if all metals in the solution will deposit on the copper cathode during electrolysis.
- Another participant suggests that while copper may deposit, the presence of hydrogen could prevent other metals from depositing.
- A follow-up question seeks clarification on whether copper is the only metal that might deposit under the right conditions.
- It is noted that electrorefining is used for copper purification, indicating that other metals may also deposit depending on their position in the reactivity series.
- Some metals, like silver, may deposit if present in the solution, but this is contingent on their reactivity relative to hydrogen.
Areas of Agreement / Disagreement
Participants express differing views on whether all metals will deposit, with some agreeing that copper is likely to deposit while others highlight the influence of hydrogen and reactivity on the deposition of other metals.
Contextual Notes
The discussion does not resolve the specific conditions under which different metals would deposit, nor does it clarify the exact role of hydrogen in the process.
Who May Find This Useful
Individuals interested in electrolysis, metal deposition, or experimental chemistry may find this discussion relevant.