Carbonic acids and organic acids and their salts of the general form R COO- are anions so they can be captured with anion exchange resins. Cyanide is another anionic carbon compound that can act like a weak acid. When these compounds are present as acids, they can be captured from both liquid and air streams with an acid absorber like AMBERLYST™ A21 Resin.
When the stream is not acidic, a strong base resin like DOWEX™ 21K XLT Resin will be required.
For streams that have a high content of organic material and are prone to surface fouling, DOWEX MARATHON™ MSA Strong Base Anion Exchange Resin is recommended.