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...Classical methods unit solvent extraction i structure introduction objectives general principles and terminology phase rule consideration distribution law its limitations ration percentage separation factor multiple extractions with successive portions classification of systems simple molecules by compound formation solvation ion pair crown ethers diluents modifiers summary terminal questions answers in the world chemicals a substance is rarely found pure form also whatever may be method preparation chemical entity truest sense never obtained free impurities rapid growth technology chemists are called upon to devise obtain substances there another problem that if we look into magic box analytical techniques hardly technique which truly specific for quantification constituent both these scenarios necessitate development effective separations have lagged behind developing new bring ingenuity existing ones this course criteria selection been discussed broader adopted affecting depends nat...