电源技术2013，Vol.37Issue(8)：1339-1341,3.
V(Ⅳ)电解液中残留草酸的电位滴定分析和去除
Determination of oxalic acid in VRB electrolyte
摘要
Abstract
Potassium permanganate based potentiometric titration method was established to realize the qualitative and quantitative determination of oxalic acid in vanadium electrolyte.It is shown that the end-point of potentiometric titration is about 1 070 mV,and the RSD (N =5) is no more than 3.6％ and the recoveries in the range of 98.7％～104.2％.Moreover,the changes of residual content of oxalic acid in the process of heating were analyzed based on the potential titration method.It is shown that oxalic acid can be removed from V(Ⅳ) electrolyte by heating.The proposed method can provide a reliable basis for the determination and removing of oxalic acid in V (Ⅳ) electrolyte for all vanadium redox flow battery.关键词
钒电池/V(Ⅳ)电解液/草酸/电位滴定/高锰酸钾Key words
V(Ⅳ) electrolyte/ oxalic acid/ potentiometric titration/ potassium permanganate分类
信息技术与安全科学引用本文复制引用
方磊,常芳,李晓兵,孟凡明,何平..V(Ⅳ)电解液中残留草酸的电位滴定分析和去除[J].电源技术,2013,37(8):1339-1341,3.基金项目
四川省第二批应用技术研究与开发项目(2008GZ0085) （2008GZ0085）
