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对H_2O_2同Fe~(2+)的反应进行了新研究。通过测量H_2O_2溶液同FeSO_4溶液相互滴定过程中的电位值、pH值和O_2的析出量,推导出了不含羟基游离基的H_2O_2氧化FeSO_4和Fe_2(SO_4),氧化H_2O_2的化学反应式。研究结果表明:H_2O_2分解为O_2和H_2O的过程中,催化剂除铁离子外还有酸。H_2O_2将溶液中的Fe~(2+)全部氧化为Fe~(3+)的电位值为640mV左右。在
The reaction of H 2 O 2 with Fe 2+ was studied. The chemical reaction equation of H_2O_2 oxidation of FeSO_4, Fe_2 (SO_4), and H_2O_2 without hydroxyl radical was deduced by measuring the potential value, pH value and the amount of O_2 precipitated during the titration of H_2O_2 and FeSO_4 solution. The results show that during the decomposition of H 2 O 2 into O 2 and H 2 O, the catalyst has acid besides iron ions. The potential of H_2O_2 to oxidize Fe 2+ in solution to Fe 3+ is about 640mV. in