摘要
本文建立了一种测定质子化常数的新方法。使用自制铟锡氧化物(ITO)膜薄层光透电极,通过对铁氰化钾溶液在几种不同pH时克式量电位E^o＇的测定,求得了Fe(CN)_6~4-的质子化常数,给出K_H^HF·(CN)_6~3-10^(4.5)、K_H^H_2Fe(CN)_6~2-=10^(2.0)。
The formal redox potentials at several pH have been determined by measurments on solutions of ferricyanide with indium-tin oxide film thin-layer optical transparent eloctrode. The protonation constants of Fe(CN)_6^(4-)have been obtained, givingvalue of 10^(4.5)and K_H^H_2~Fe(CH)_6~2- value of 10^(2.0). A new method for protonation constant deter mination has been established.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第9期1020-1022,共3页
Chinese Journal of Analytical Chemistry
关键词
亚铁氰化钾
测定
质子化常数
Tbin-layer spectroelectrochemistry
Ferrocyanide
Formal redox potential
Protonation constant
