摘要
本文用分光光度法研究了对溴偶氮氯膦(CPA-pB)的离解作用,测定了其逐级离解常数,且与已报道的对硝基偶氮氯膦(CPA-pN),对氯偶氮氯膦(CPA-pC)的离解常数进行了比较,其结果与结构分析基本相符。本文还用分光光度法研究了CPA-pB与镧的溶液配合物,测定了该配合物的组成和稳定常数,并用古埃磁天平测定了该溶液配合物的磁化率。
The dissociation of chlorophosphonazo(CPA)-pB in aqueous solution was studied by spectrophotometry and the values of dissociation constants were determined at identical temperature(25±0, 1℃)and ionic strength(μ=0. 4). The values of dissociation constant of CPA-pB, CPA-pC and CPA-pN were compared and the results were in record with structure analysis. The composition and stability constant of lanthanum-CPA-pB complex in aqueous solution were measured by spectrophotometric method, and the magnetic susceptibility of the complex was measured with a Gouy magnetic balance.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第9期1082-1084,共3页
Chinese Journal of Analytical Chemistry
关键词
对溴偶氮氯膦
镧
分光光度法
Chlorophosphonazo-pB
Dissociation constant
Stability constant
