摘要
用pH电位法研究了3-苯基偶氮-5-磺基水杨酸与过渡金属Cu(Ⅱ),Ni(Ⅱ),Co(Ⅱ),Zn(Ⅱ),稀土Nd(Ⅲ),La(Ⅲ)和Mo(Ⅵ)二元体系以及与Nd(Ⅲ)-EDTA混配体系在25℃,离子(ClO-14)强度为0.1molL-1时的络合行为.用SCOGS或SCOGS2程序计算了体系中存在的各种络合质点的累积生成常数;并讨论了滴定曲线。
The coordination behavior of 3 phenylazo 5 sulfo salicylic acid
(PASSA) with Cu(Ⅱ),Ni (Ⅱ),Co (Ⅱ),Zn (Ⅱ),La(Ⅲ),Nd (Ⅲ),Mo (Ⅵ) respectively as binary system
and Nd (EDTA) mixed ligand complex have been studied pH metrically in aqueous solution at
(25.0±0.1) ℃,0.1 mol·L -1 ionic (ClO - 4) strength. The cumulative formation constants of
all kinds of complexes have been calculated with SCOGS or SCOGS2 program. The pH titration
curves,the stability of complexes,and the changes among different complex species equilibria
have been discussed.
出处
《复旦学报(自然科学版)》
CAS
CSCD
北大核心
1999年第1期29-33,共5页
Journal of Fudan University:Natural Science
基金
国家自然科学基金
关键词
过渡金属
稀土
钼
配合物
稳定性
PASSA
transition metal
rare earth
molybdenum
complex compounds
mixed ligand complex
3 phenylazo 5 sulfo salicylic acid