Explain the purification of Zirconium and Tit | vedclass

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(B) This method is very useful for removing all the oxygen and nitrogen present as impurities in certain metals like $Zr$ and $Ti$.The crude metal is

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Van Arkel Method

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(B) This method is very useful for removing all the oxygen and nitrogen present as impurities in certain metals like $Zr$ and $Ti$.The crude metal is heated in an evacuated vessel with iodine.The metal iodide,being more covalent,volatilizes.$Zr + 2I_2 \rightarrow ZrI_4$The metal iodide is decomposed on a tungsten filament,which is electrically heated to about $1800 \ K$.Thus,the pure metal is deposited on the filament.$ZrI_4 \rightarrow Zr + 2I_2$

Explain the purification of Zirconium and Titanium metals.

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