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Reversible exchange of ions contained in a crystal for different ions in
solution without destruction of crystal structure or disturbance of
electrical neutrality. The process is accomplished by diffusion and occurs
typically in crystals possessing one- or two-dimensional channelways where
ions are relatively weakly bonded. Also occurs in resins consisting of
three-dimensional hydrocarbon networks to which many ionizable groups are
attached. Syn: base exchange
Source:
Dictionary of Mining, Mineral, and Related Terms
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