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Department of Chemistry, Indian Institute of Technology, Powai, Bombay-400 076 Cation exchange chromatographic behaviour of manganese(II) on Dowex 50W-X8 was studied in mixed solvent systems. Methanol, ethanol, 2-propanol, acetone, dioxane and tetrahydrofuran in conjunction with 2 M hydrochloric acid were used as eluanla Amongst the non-aqueous solvents tested, acetone, methanol and ethanol proved to be efficient while 2-propanol, dioxane and tetrahydrofuran had no practical utility. The separation of manganese from binary mixture containing alkali metals, alkaline earth metals and some other associated elements was carried out by the process gradientelution as Well as selective elution thing combinations of different organic solvents.Similarly, separation of multicomponent mixtures of six elements commonly associatedwith manganese was done by sequential separation in the mixed solvent system.