摘要
本文用铅离子选择电极测定了乙醇-水混合溶剂中Pb-NO_3配合物的稳定常数.实验证明,铅和硝酸根可以形成PbNO_3^+和Pb(NO_3)_2两种配合物。所计算的热力学稳定常数表明溶剂中乙醇含量直到76%(w/w)lgβ_i°-1/ε都呈直线关系.
The stability constants of Pb-NO_3 complexes were determined by lead ion-selective electrlde in ethanol-water mixtures.It was.proved that both the complexes PbNO_3^+and Pb(NO_3)_2can be formed by lead with nitrate. The calculated thermodynamical stability constants indicated that the plots of 1gβ-1 / ε is linear until 76%(W/ W) ethanol in solvent.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1990年第2期43-47,共5页
Journal of Northwest University（Natural Science Edition）
关键词
离子选择电极
铅
硝酸根
配合物
Ion-selective electrode
Complexatoin equilibrium
Stability constant
Ethanol-water solvent
Lead
Nitrate
