Hello all,

I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2) & 60% water]. I did not dilute the waterglass any further prior to ion-exchanging (big mistake) and it cross-linked so that the resin has now become a solid block. Any suggestion on how to dissolve the cross-linked resin? I just want to use the column again, which is not functional any longer due to the hardened resin within it.

Thanks in advance for your advice.

Max D.

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