I2与I-平衡常数实验废液中碘含量的测定和回收

摘要

I-and I2 were separated by extraction using the differences of their solubility in carbon tetrachloride.Iodine content in CCl4 and water were determined respectively.With the easy sublimation of I2, iodine was recycled from waste liquid.The results showed that the recovery rate of iodine was 90.80％, and the purity of I2 was 95.65％, which met the requirements of chemical pure reagent.%利用I-和I2在CCl4中溶解度的差异采取萃取方法使其分离,分别测定CCl4系和水系中I2的含量,并利用I2易升华的性质对废液中碘进行回收.结果表明,该方法碘回收率为90.80％,所得I2的纯度为95.65％,达到了化学纯试剂的使用要求.