Caustic Purification

DOWEX™ Retardion 11A8 50-100 mesh resin is a unique resin product type used for caustic purification. It is prepared by exchanging and then polymerizing a cationic monomer inside the matrix of an anion resin. This yields a linear polymer trapped inside the cross-linked ion exchange resin. The resulting resin system is physically and chemically stable, containing a mixture of cation and anion exchange sites, which are in very close proximity such that the functional groups can associate with each other and partially neutralize each other's electrical charge. These self-adsorbed sites have an attraction for mobile anions and cations from solutions which are passed through and can retain them from a bulk stream. Adsorbed ions can be displaced from the resin using water as the eluant.

DOWEX Resins

Product Description Type Matrix Total
Exchange
Capacity*
eq/l (kgr/ft3)
Available
Forms
DOWEX Retardion 11A8 50 - 100 mesh Amphoteric resin containing both weak acid cation and strong base anion functionality within the same resin. Amphoteric resin Styrene-DVB, Gel 1.1 meq/ml (24.1 kgr/ft3)
1.2 meq/ml (26.3 (kgr/ft3)
-COOH and -N(CH3)3


 



®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow