How to prepare and what is the principle behind the copper-ammonia solution used for manual analysis of oxygen content
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Can a copper-ammonia solution used for manual analysis of oxygen content be prepared directly using copper sulfate, ammonia water, and water, to analyze oxygen? I used to prepare it with copper wire along with ammonium chloride, ammonia water, and water, but it was too troublesome to change it. So I’d like to make some changes; please help analyze whether it’s possible
No, in a copper-ammonia solution, the copper ions are monovalent cuprous ions; therefore they can react with oxygen to form divalent copper ions, which is used for the quantitative determination of oxygen. Copper sulfate, on the other hand, consists of divalent copper ions and does not have the ability to react with oxygen. The quantitative analysis using a copper-ammonia solution for manual oxygen measurement is itself a one-time reaction; under normal circumstances it is irreversible. However, as long as there’s still copper wire available, the process can be repeated
I’m learning… I wonder if there are any specific materials on manual analysis of air separation on the second floor. I’d like to learn it, and I hope you can help me.