摘要
本文研究了邻菲罗啉对KBrO3-Na2SO3-K4[Fe(CN)6]-H2SO4振荡体系的扰动。结果表明,当加入邻菲罗啉的浓度在0.0005~0.0035mol·L-1范围内时,导致KBrO3-Na2SO3-K4[Fe(CN)6]-H2SO4pH振荡体系的Pt电极电位、溴离子选择电极电位和 pH振荡的周期和振幅均明显放大,而加入邻菲罗啉的浓度在0.004~0.013mol·L-1范围内时,该体系的振幅缩小。另外,本文就邻菲罗啉对KBrO3-Na2SO3-K4[Fe(CN)6]-H2SO4pH振荡体系的影响机理进行了讨论。
The effect of phenanthroline on the KBrO3-Na2 SO3-K4 [ Fe( CN) 6 ]-H2 SO4 pH oscillating chemical system was investiga-ted in this paper. The results indicated that the redox potential,the Br- selective electrode potential and pH oscillating amplitudes were amplified when the concentrations of phenanthroline in the range of 0. 0005-0. 0035mol·L-1 whereas concentrations of phenan-throline in the range of 0. 004-0. 013mol·L-1,redox potential,the Br- selective electrode potential and pH oscillating amplitudes were reduced. In addition,the possible mechanism of the perturbation was investigated.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2014年第3期354-358,共5页
Chemical Research and Application
关键词
邻菲罗啉
pH振荡反应
机理
phenanthroline
pH oscillating reaction
mechanism