Make Sulfuric Acid by the Copper Chloride Process

In this video we make sulfuric acid by the copper chloride process.

The general idea is simple: Take a solution of copper (II) chloride and bubble sulfur dioxide into it until most of the copper (II) chloride is converted into copper (I) chloride. This reaction also converts the sulfur dioxide into sulfuric acid and produces hydrochloric acid. Now the copper chloride can be regenerated by bubbling air into the mixture until the copper chloride dissolves again. This cycle can be repeated. When you want to isolate the sulfuric acid you forgo air infusion for that step and filter off the preciptated copper chloride. Then you distill off the hydrochloric acid and water from the filtrate. The sulfuric acid left behind will precpitate out most of the remainig copper salts and when filtered will give you relatively pure sulfuric acid with some water and minor copper contamination. The copper chloride can be recombined with all the hydrochloric acid from before and the cycle repeated.
Related videos:

Make a heating mantle to distill sulfuric acid: https://www.youtube.com/watch?v=N5meDWAqYes

Distilling sulfuric acid: https://www.youtube.com/watch?v=tgUH0HXrOKE

Make copper chloride PCB etchant: https://www.youtube.com/watch?v=V8mHiFYmlBc

make sulfuric acid using hydrogen peroxide: https://www.youtube.com/watch?v=okvvD3-DF9U
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Видео Make Sulfuric Acid by the Copper Chloride Process канала NurdRage