FORMATION OF COMPLEXES OF COBALT (II) IONS WITH MALEIC ACID ANION IN AQUEOUS - ETHANOL SOLUTIONS

被引：0
|
作者：
Tukumova, N. V. [1 ]
Usacheva, T. R. [1 ]
Thuan, Chan [1 ]
Sharnin, V. A. [1 ]
机构：
[1] Ivanovo State Univ Chem Technol, Ivanovo, Russia
来源：
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA | 2012年 / 55卷 / 09期
关键词：
maleic acid; stability constant; coordination compounds; solvation contribution;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The composition and stability of complex compounds of cobalt (II) ions with maleic acid anion in aqueous-ethanol solutions was determined by means of potentiometric titration at 298.15 K and ion force of I=0.1 (NaClO4). The increase in the stability for mono complex of Co2+ with maleic acid anion occurs under the increase in ethanol content in solution. The results obtained were compared with the literature data on related compounds. The ions of Co2+ were found to form with the anion of maleic acid less stable complexes than Ni2+ at studied compositions of solvent that corresponds to the conventional Irving-Williams series.
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页码：16 / +
页数：5
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