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Dolamite is double salt. How is it commercially used for preparing magnesium sulphate ? |
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Answer» Solution :Dolamite is commercially CHEAP. On treating with sulphuric acid it givess a mixture of MAGNESIUM sulphate and calcium suplhate. Calcium suphate is relatively LESS SOLUBLE . Hence ,calcium sulphate is separated from aqueous solution by FRACTIONAL crystallisation . |
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