Acid-base and complexing interactions of ethylenediaminedi-α-valeric acid in aqueous solution

被引：0
|
作者：
Filippov, DV [1 ]
Chernikov, VV [1 ]
Kochergina, LA [1 ]
机构：
[1] Ivanovo State Univ Chem Technol, Ivanovo, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2004年 / 49卷 / 01期
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D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Ionization constants for ethylenediaminedi-a-valeric acid (EDDV) at 298.15 K and several values of solution ionic strengths (I = 0.5, 1.0, 1.5 KNO3) have been determined using potentiometric titration. EDDV complexing with magnesium and calcium ions has been studied. Monocoordinated (ML) and protonated (MHL+) complexes, where M stands for Mg2+ or Ca2+, have been observed. Stability constants for the complexes have been determined. Extrapolation to the zero ionic strength resulted in thermodynamic ionization constants for EDDV and stability constants for EDDV complexes with magnesium and calcium ions.
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页码：112 / 114
页数：3
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