Description of DONG Li Cation Resin GC 104

Cation resins are ion exchange materials commonly used in water treatment and various industrial processes. They are usually made of synthetic polymers that contain functional groups capable of exchanging cations (positively charged ions) in a solution.

Composition: Typically composed of polystyrene beads that are sulfonated to introduce sulfonic acid groups (-SO3H). These groups are responsible for the cation exchange process.

Function: Cation resins replace undesirable cations (such as calcium, magnesium, iron, and sodium) with hydrogen or other desirable cations. This is particularly useful in water softening, where calcium and magnesium ions are exchanged for sodium or hydrogen ions to prevent scaling.

Applications: Widely used in water softening, demineralization, and desalination processes. They also find applications in the food and beverage industry, pharmaceutical production, and chemical manufacturing.

Types: Generally classified into two main types—strong acid cation resins and weak acid cation resins. Strong acid cation resins are more commonly used and can operate over a wider pH range, while weak acid cation resins are more selective and effective in certain specific applications.