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Dolomite can also be treated to get MgCI_(2) which in turn is electrolyzed to get Mg (Dow's natural brine process). Give reactions of this process. |
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Answer» Solution :`{:(MgCO_(3).CaCO_(3),underset(Delta)RARR,MgO + CaO + 2CO_(2) UARR),(,," "darr HCI darr),(MgCl_(2)+CaCO_(3) darr,overset(CO_(2))rarr,MgCI_(2) + CaCI_(2)):}` On passing `CO_(2)` into aq. `MgCI_(2) and CaCI_(2)` solution, `CaCO_(3)` is precipitated leaving `MgCI_(2)` soluble. |
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