exchange cations
2.THE QUANTITATIVE RELATIONSHIP BETWEEN THE ION-EXCHANGE EQUILIBRIUM CONSTANTS OF CATIONS IN NITRIC ACID AND THE ION-POTENTIAL
3.Fibrous electrolytic manganese dioxide(EMD) was prepared from manganous chloride solution by electrolyzing at 90~95℃with graphite anode, EMD has the exchange properties with cations in aqueous chloride solutions,A lithium type ionic-sieve made from EMD substrate may be used for selective adsorption of trace lithium from sea water with an efficiency of about 90% yield.
6.Any one of a family of hydrous aluminum silicate minerals, whose molecules enclose cations of sodium, potassium, calcium, strontium, or barium, or a corresponding synthetic compound, used chiefly as molecular filters and ion-exchange agents.

