Studies on Metal Complex Species Using an Anion Exchange Resin. II. On the Adsorption of Silver from Nitrate Solution

Abstract 1) It was found that silver was to some extent adsorbed on a strong base anion exchange resin from nitrate solutions. Its behavior was significantly different from that of alkali metals. 2) The equations derived in the previous paper were applied to a study of silver-nitrate complex. Starting from the same equation, two methods using either NaNO3 + NaClO4 mixed media or the loading of the complex were employed, and the two results were in good agreement. 3) It was presumed that most silver in the resin exists as Ag(NO3)2− in neutral nitrate media where the external nitrate concentrations were about 2∼3 m, although such anionic species may not be considered to exist in an ordinary nitrate solution.