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钒催化溴酸盐氧化碘化物成碘,加入抗坏血酸会产生Landolt反应。本实验对碘化物、溴酸盐、抗坏血酸的浓度及pH对反应影响进行了探讨。干拢离子也进行了试验。Landolt效应的诱导期倒数与钒的浓度成线性关系。实验结果满意。
Vanadium catalyzes bromate oxidation of iodide to iodine, and addition of ascorbic acid produces a Landolt reaction. In this experiment, the effects of iodide, bromate, ascorbic acid concentration and pH on the reaction were discussed. Drying ions have also been tested. The induction of the Landolt effect has a linear relationship with the vanadium concentration. Experimental results are satisfactory.