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Explain with equation Van-Arkel method for refining of zircnium. |
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Answer» Solution :The CRUDE metal is heated in an EVACUATED VESSEL with IODINE. The metal iodide being more covalent, volatizes. `Zr+2I_(2)rarrZrI_(4)` The metal iodide is decomposed on a tungsten FILAMENT, electrically heated to about 1800K. The pure metal is thus deposited on the filament. `ZrI_(4)rarrZr+2I_(2)` |
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