Definition

Noun: A chemical process in which ions are exchanged between a solution and an insoluble solid material, typically a resin. This reversible interchange is widely used for purification, separation, and decontamination in industrial and laboratory settings.

Usage

The term "ion exchange" describes the core process itself. It is commonly used as a noun phrase, often functioning as a compound modifier before other nouns (e.g., ion exchange resin, ion exchange process). - The laboratory uses ion exchange to demineralize water for experiments. - Ion exchange is a key step in water softening systems. - The efficiency of the ion exchange depends on the resin type and solution pH.

Examples

• The purification of the chemical solution was achieved through ion exchange.
• Ion exchange chromatography separates molecules based on their charge.
• In this facility, ion exchange recovers valuable metals from industrial wastewater.

Advanced Usage

• "to undergo ion exchange": Describes the material or solution experiencing the process.
  • The hard water will undergo ion exchange in the softener tank.
• "subject to ion exchange": Indicates a material is suitable for or affected by the process.
  • The contaminated solution was subject to ion exchange treatment.

Variants and Related Words

• Ion exchanger (n): The solid material (e.g., a resin or zeolite) used to perform ion exchange.
  • The ion exchanger was saturated with calcium ions and needed regeneration.
• Cation exchange (n): A specific type of ion exchange involving positively charged ions (cations).
• Anion exchange (n): A specific type of ion exchange involving negatively charged ions (anions).

Synonyms

• Ion interchange: A less common, more descriptive synonym.
• Ion swapping: An informal term describing the process.

Related Phrases

• Ion exchange capacity: A measured property of a material indicating how many ions it can exchange.
  • Choosing a resin with a high ion exchange capacity is crucial for the application.
• Ion exchange membrane: A barrier that allows selective ion exchange, used in applications like electrodialysis.
  • The fuel cell uses a proton-conducting ion exchange membrane.

Noun

1. a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid; widely used in industrial processing