Explain the process of electrolytic refining of copper with a neat diagram

Answers (1)
S Sumit

Electrolytic Refining of copper means its refining by electrolysis method. Many metals like copper, zinc, tin lead are refined by this method.

Process Of electrolytic Refining is described below:

firstly the apparatus for the electrolysis consist of Electrolytic tank containing acidified copper sulphate solution as electrolyte.

Then a thick block of impure copper metal is dipped as anode 

A thin strip of pure copper metal is dipped as cathode 

Now,elcetricity is passes through the setup and in this process,  Impure copper from the anode dissolves and goes into CuSO4 solution and pure copper from the copper sulphate solution gets deposited on the cathode .

This is how a pure copper metal is produced at cathode. The soluble impurities goes into the solution whereas insoluble impurities settles down at anode as anode mud.

Chemical reaction depcting the same is:

At cathode : Cu²âº + 2e  ---->Cu

At anode : Cu - 2e---->Cu²âº

What is meant by refining of metals? Describe the electrolytic ...

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