base exchange


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Related to base exchange: base excess

base exchange

[′bās iks′chānj]
(geochemistry)
Replacement of certain ions by others in clay.

cation-exchange softening

The softening of water by the removal of dissolved ionic contaminants in hard water (such as scale-forming magnesium and calcium ions) and their replacement with sodium ions, which are more soluble.
References in periodicals archive ?
AAFES, also known as the Army Air Force Exchange Service consists of over 140 BX's or base exchanges which last year sold $6.