Definitioner
Resin
synthetic organic ion exchange material, such as the high capacity exchange resin widely used in water softeners.
Ion Exchanger
a permanent, insoluble material which contains ions that will exchange reversibly with other ions in a surrounding solution. Both cation and anion exchangers are used in water conditioning.
Ion Exchange
a reversible process in which ions are released from an insoluble permanent material in exchange for other ions in a surrounding solution; the direction of the exchange depends depends on the affinities of the ion exchanger for the ions present, and the concentrations of the ions in the solution.
Ion
an atom, or group of atoms which function as a unit, and has a positive or negative electrical charge, due to the gain or loss of of one or more electrons.
Hydroxide
a chemical compound of an element or elements with the hydroxyl (oh) anion.
Demineralization
the removal of ionized inorganic minerals and salts (not organic materials)from a solution by a two phase ion exchange procedure, similar to deionization, and the two terms are often used interchangeably.
Anion Exchange
An ion exchange process in which anions in solution are exchanged for other anions for an ion exchanger. In demineralization, for example, bicarbonate, chloride and sulfate anions are removed from solution in exchange for a chemically equivalent number hydroxide anions from the anion exchange resin.
Anion
A negatively charged ion in solution, such as bicarbonate, chloride, or sulfate.
