Linked from
The 25 pages that link to Water softening, each with the reason it gives.
SaltRelated: Salt regenerates ion-exchange resins used in many water softeners.
CarbonateRelated: Carbonate precipitation can remove hardness-causing ions.
Water hardnessRelated: Softening directly reduces the mineral content measured as hardness.
Sodium carbonateRelated: Carbonate ions precipitate hardness ions as insoluble carbonates.
Salt (chemistry)Related: Ion-exchange salts and brines are used in common softening systems.
DetergentRelated: Softened water allows surfactants to clean more effectively.
Solubility equilibriumRelated: Precipitation equilibria can remove hardness-forming ions from water.
Ion-exchange resinRelated: Sodium-form cation resin replaces hardness ions with sodium.
Water chemistryRelated: It applies ion-exchange or precipitation chemistry to control hardness.
Tectosilicate frameworkRelated: A classical use of framework cation exchange in zeolites.