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how is bauxite purified by halls method?

Asked by 28th February 2008, 9:32 AM
Answered by Expert
Answer:

bauxite is dissolved in NaOH impurities donot dissolve and are separated. sodium aluminate is hydrlysed to get aluminium hydroxide which gives Al2O3. this process is called leaching.

Answered by Expert 2nd March 2008, 8:11 PM
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