大学化学2018，Vol.33Issue(3)：59-62,4.DOI:10.3866/PKU.DXHX201709038
磺基水杨酸合铜配合物组成和稳定常数测定实验的改进
lmprovement of Stability Constant Determination of Sulfosalicylic Acid-Copper (ll) Complex
摘要
Abstract
A method to improve the determination of composition and stability constant of sulfosalicylic acid-copper(II) complex, a common experiment in university laboratory course, was proposed. In this study, a mixed solution of sulfosalicylic acid and sodium hydroxide was prepared in advance. The hexamethylene tetramine-nitric acid buffer solution was used to control the pH, which avoided repeatedly adjustment of the pH with a strong acid and a strong base and simplified the experiment process. At pH 5.60, the measured conditional stability constant was 3.6 × 103and the deduced stability constant was 3.6 × 109, which was roughly consistent with the reported value (3.3 × 109).关键词
磺基水杨酸铜配合物/缓冲溶液/稳定常数Key words
Sulfosalicylic acid-copper(Ⅱ) complex/Buffer solution/Stability constant分类
社会科学引用本文复制引用
刘绍乾,方正法,杨章鸿,董和大,黄思..磺基水杨酸合铜配合物组成和稳定常数测定实验的改进[J].大学化学,2018,33(3):59-62,4.基金项目
湖南省教育厅项目(17C0947) （17C0947）
2016中南大学本科教育教学改革研究项目(160010010) （160010010）
