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A Study on the Complexation of Nickel(II) Ion with 2-(2-Hydroxyethylamino)-2-(hydroxymethyl)-1,3-propanediol(Monotris) in Aqueous Solution

수용액 중에서 Ni(II) 이온과 2-(2-Hydroxyethylamino)-2-(hydroxymethyl)-1,3-propanediol(Monotris)과의 착물형성에 대한 연구

  • 홍경희 (삼육보건대학 피부미용과) ;
  • 심승보 (한양대학교 화학공학과) ;
  • 오성근 (한양대학교 화학공학과) ;
  • 전용진 (청운대학교 화장품과학과)
  • Received : 2010.10.25
  • Accepted : 2010.12.17
  • Published : 2010.12.31

Abstract

The complex formation from Ni(II) ion and 2-(2-Hydroxyethylamino)-2-(hydroxymethyl)-1,3-propanediol(Monotris) in aqueous solution at $25^{\circ}C$ and at ionic strength of 0.10M has been studied potentiometrically. In the Monotris(L) comlex $NiL^{2+}$, hydroxyl oxygen atom as well as the amine nitrogen of the ligand are coordinated to the Ni(II) ion.. The complex $NiL^{2+}$ undergoes further dissociation as the pH is increased forming triply deprotonated dinuclear complex $Ni_2L_2H_{-3}^+$.

Keywords

Potentiometric;Deprotonated dinuclear complex;$NiL^{2+}$;$Ni_2L_2H_{-3}^+$

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