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Basic Type Of Ion Exchange Resin
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Basic Type Of Ion Exchange Resin

According to the "The Structure of Ion Exchange Resin " section, the functional group of the resin determines the properties and uses of the resin, so the classification of the resin and the functional groups are classified:

1、Strong acid cation exchange resin SAC-sulfate group-SO3H
SAC is capable of dissociating H+ and exhibit strong acidity, could be cation exchanged at any pH, and regenerated with acid.

2、Weak acid cation exchange resin WAC- carboxyl -COOH
WAC is capable of dissociating H+ and exhibit weak acidity. It can be cation exchanged in alkaline, neutral or slightly acid solutions,and generally regenerated with acid.

3、Strong base anion exchange resin SBA - quaternary ammonium-NR3OH
SBA is highly alkaline due to dissociation OH- in water. It can be anion exchanged at any pH, and are typically regenerated with NaOH.

4、Weak base anion exchange resin WBA- primary amine-NH2,secondary amine-NHR,Tertiary amine-NR2
WBA can dissociate OH- in water and shows weak alkaline, only work under neutral or acidic conditions (pH 1-9). They are generally used to remove the acid molecules in solution,and regenerated with Na2CO3, NH4OH.

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