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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.
In this paper, the stability constants of Pb-NO_3 complexes in ethanol-water mixed solvents were determined by using lead ion selective electrode. The results show that lead and nitrate can form two complexes of PbNO_3 ~ + and Pb (NO_3) _2. The calculated thermodynamic stability constants show that the ethanol content in the solvent has a linear relationship up to 76% (w / w) lgβ_i ° -1 / ε.