Ion Exchange
| Formula / Notation | Resin-ion: R-SO₃⁻ Na⁺ + Ca²⁺ → R₂-SO₃²⁻ Ca²⁺ + 2Na⁺ (cation exchange) |
|---|---|
| Also Known As | Ion exchange process, IX process, cation exchange, anion exchange |
What is Ion Exchange?
A process in which ions in solution are exchanged with ions of the same charge bound to an ion exchange resin. Used in water softening (replacing Ca²⁺ and Mg²⁺ with Na⁺), deionization, chromatography, and industrial purification processes.
Formula & Notation
Other Names / Synonyms: Ion exchange process, IX process, cation exchange, anion exchange
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A process in which ions in solution are exchanged with ions of the same charge bound to an ion exchange resin. Used in water softening (replacing Ca²⁺ and Mg²⁺ with Na⁺), deionization, chromatography, and industrial purification processes.
Ion exchange is used in: water softening (Ca²⁺, Mg²⁺ replaced by Na⁺), demineralisation (full deionised water production), industrial purification of amino acids and antibiotics (by HPLC ion exchange), uranium and rare earth extraction from ores, kidney dialysis (removing uremic toxins), and in anal…
Ion exchange regenerants (concentrated NaOH, HCl, H₂SO₄) are corrosive. Some ion exchange resins leach trace organic compounds. Spent resins from nuclear applications are radioactive waste. Ion exchange of heavy metal solutions generates concentrated waste streams requiring proper treatment and disp…
The formula or notation for Ion Exchange is: Resin-ion: R-SO₃⁻ Na⁺ + Ca²⁺ → R₂-SO₃²⁻ Ca²⁺ + 2Na⁺ (cation exchange)