PDF Publication Title:
Text from PDF Page: 005
6. Allow the electrolytic cell to operate for 30-60 minutes. OPTIONAL: Record the length of time the cell was operating. 7. Remove the cardboard with the coin/copper wire assemblies and hang to dry in an empty cup or beaker until it is dry (approximately 5-10 min), being careful not to touch the coins, so as not to lose any of the copper plating. 8. Examine the coins for changes. OPTIONAL: Weigh each coin/copper wire assembly and record the mass. Calculate the difference in starting and ending mass. DISPOSAL Coins used in this experiment should not be reused as currency. Coin/copper wire assemblies may be discarded in the trash or recycled. Electrolyte solution can be reused; to dispose of the solution, it should be flushed down the drain with plenty of water. 9V batteries can be disposed of in the trash. RELEVANCE For purifying copper commercially, large slabs of impure copper (called blister copper) are used as anodes and placed in large vat containing an electrolyte solution of copper sulfate and sulfuric acid. Thin “starter sheets” of highly pure copper foil are used as the cathodes, which are placed in between the anodes. When current is applied (over 200 amperes), copper (as well as other metals) leaves the anode and moves through the solution toward the cathode. The other metals (sometimes valuable, but considered to be impurities in copper processing) either remain in solution or fall to the bottom of the tank, where they can be later captured for use as a by-product. Over the course of 1-2 weeks, the copper ions plate onto the cathode, resulting in a 300-pound sheet of 99.9% pure copper.PDF Image | Chemistry of Copper Electrolysis
PDF Search Title:
Chemistry of Copper ElectrolysisOriginal File Name Searched:
copper_electrolysis_hands_on_final.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Power up your energy storage game with Salgenx Salt Water Battery. With its advanced technology, the flow battery provides reliable, scalable, and sustainable energy storage for utility-scale projects. Upgrade to a Salgenx flow battery today and take control of your energy future.
| CONTACT TEL: 608-238-6001 Email: greg@salgenx.com | RSS | AMP |