MP Board · Class 9 · Science · Is Matter Around Us PureHow can we obtain pure copper sulphate from an impure sample using the crystallization method?

Pure copper sulphate is obtained from an impure sample using crystallization by first dissolving the impure sample in a minimum amount of water and filtering out insoluble impurities. The copper sulphate solution is then gently heated to evaporate water until a saturated solution is formed. Upon cooling this hot saturated solution slowly, pure copper sulphate crystals separate out, leaving dissolved soluble impurities behind in the remaining liquid solution.