Xanthurenic acidによる亜鉛、銅の奪取力に関する研究 (予報)

抄録

As the reaction between xanthurenic acid and ferrous ions is usually carried out in a solution of weak alkalinity, we consider so far that the reaction does not occur in a solution of weak acidity. But the fact that the chelating reaction occurs in a solution of weak acidity should be attracted notice. We would like to state about zinc for instance.

One circular pure zinc plate of 3mm thick and 1cm in diameter is prepared. Then it is immersed only half surface in the 1/100 Mol. xanthurenic acid solution neutralized with NaHCO₃

And the dissolved quantity is determined by atomic absorption spectrometry. As the zinc ratio to xanthurenic acid (namely the capturing action of zinc) is near to 0, 3, it is supposed that 1 atom of zinc combines with 1 molecule of xanthurenic acid. Because if 1 atom of zinc combines with 2 molecules of xanthurenic acid, the capturing action of zinc will be 0, 16.