terms:cation_exchange_capacity
Also called base-exchange capacity. A measure of the extent to which a substance will supply exchange cations.
Compensating cations serve to compensate the excess of (usually negative) charge in clay lattices. The cation exchange capacity is related to the concentration of compensating cations (or counter ions) near clay-layer surfaces, which in the presence of water, can be exchanged for other cations available in solution. The cation-exchange capacity of a clay is expressed in terms of milliequivalents of exchangeable ions per 100 grams of dry clay. See also ion exchange.
terms/cation_exchange_capacity.txt · Last modified: 2023/11/22 08:40 by 127.0.0.1