Near-quantitative Removal of Oxalate and Terephthalate from Water by Precipitation with a Rigid Bis-amidinium Compound

A simple, readily-prepared precipitant (1.Cl2) precipitates oxalate or terephthalate from water with very high efficacy, removing these anions at sub-millimolar concentrations using only one equivalent of precipitant. A simple aqueous base/acid cycle can be used to regenerate 1.Cl2 after use. The resulting precipitates, 1.oxalate and 1.terephthalate, are anhydrous and closely-packed,... Show more