海带中碘元素的分离实验改进

Improvement of Separation Experiment of Iodine from Kelp

碘离子的氧化与碘单质的分离是海带中碘元素分离的关键步骤。采用反加试剂法改进碘离子氧化步骤,采用水蒸气蒸馏法改进碘单质的分离,达到了实验现象明显,终点判断简单,分离度高,环境污染少的优点。

The oxidation of iodine ion and the separation of iodine are the key steps in the separation of iodine from kelp. This paper used the method of reverse reagent addition to improve the iodine ion oxidation process, and used steam distillation to improve the separation of iodine. The experimental phenomenon was obvious, the end point of this experiment was simple to judge, with high separation and less environmental pollution.