论文部分内容阅读
本文系用分配法研究碘分子与氯离子、溴离子和碘离子在水溶液中的络合反应。在碘分子浓度较低的情况下,用与水不相溶的氯仿作萃取剂,在恒温条件下,用国产721型分光光度计于480nm处测定吸光度,用作图法处理实验数据,用函数图解外推法求取各级络合物的积累稳定常数。结果表明有多卤络合物生成,并且所得络合物稳定常数与文献基本一致。
In this paper, the distribution method was used to study the complexation of iodine molecules with chloride, bromide and iodide in aqueous solution. In the case of low iodine concentration, with water-immiscible chloroform as the extractant, under constant temperature, with a domestic 721 spectrophotometer absorbance was measured at 480nm, used as a graphical method to deal with experimental data, with a function Graphical Extrapolation to Calculate the Accumulation Stability Constants of Complexes at All Levels. The results show that there are multiple halogen complexes generated, and the stability constants of the complexes with the literature is basically the same.