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Outline the principle of the method used...

Outline the principle of the method used for refining of
Zirconium.

Text Solution

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van Arkel method is used for the refining of zirconium
`Zr +2I_(2) to ZrI_(4)`
The metal iodide is decomposed on a tungsten filament, electrically heated to 1800K. The pure metal is deposited on the filament
`ZrI_(4) to Zr + 2I_(2)`.
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  9. Outline the principle of the method used for refining of Nickel.

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  10. Outline the principle of the method used for refining of Zirconium.

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  11. Outline the principle of the method used for refining of Tin.

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