describe a method for refining Ti.

Van Arkel method: Ultra pure metals are being prepared by the Van Arkel Method. Crude metal is heated with a suitable substance so that the pure metal present in it may be converted into stable volatile compound leaving behind impurities. The compound so formed is then decomposed by heating to get the pure metal.

Van Arkels method is used to purify crude titanium metal. It is heated with iodine to about 500K to form volatile compound. Til4 leaving behind the impurities .Til4 is further heated to 1700K when it decomposes to give pure titanium.

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 Van arkel method

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