Kinetics and mechanism of the reaction of aqueous copper(II) with ascorbic acid
Kinetics and mechanism of the reaction of aqueous copper(II) with ascorbic acid
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DOI：
10.1021/ic00341a015
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发表时间：
1990-08
影响因子：
4.6
通讯作者：
Jinhuang Xu;R. Jordan
中科院分区：
文献类型：
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作者：
Jinhuang Xu;R. Jordan
在厌氧条件下，在[Cu 2+]的氧化铜（1-5）×10 -3 m处，用水铜（II）氧化已经研究了，总抗坏血酸浓度为5×10 -5 m，并且（0.50-10）×10 -3 M NaClo 4 /Hclo 4在25 o中。还研究了氯离子浓度的动力学效应讨论了有关氧化的直接和氯化物催化路径的有问题的机制，并在存在乙酸盐的情况下会导致较早的结果。
The oxidation of ascorbic acid by aqueous copper(II) has been studied under anaerobic conditions with [Cu 2+ ] in the range (1-5)×10 −3 M, total ascorbic acid concentration of 5×10 −5 M, and [H + ] of (0.50-10)×10 −3 M NaClO 4 /HClO 4 at 25 o C. The kinetic effect of the chloride ion concentration also has been investigated. The observed pseudo-first-order rate constant. The resualts are discussed in terms of the probable mechanisms for the direct and chloride-catalyzed paths for the oxidation, and earlier results in the presence of acetate are reanalyzed