库仑滴定法测定六氟磷酸锂中微量水分
Determination of Microamounts of Moisture in Lithium Hexafluorophosphate by Coulometric Titration
摘 要
基于与卡尔-菲休试剂的反应用库仑滴定法测定了六氟磷酸锂中的微量水分.对同一试样的不同进样量(0.5~5.0 mL共10份)按所提出方法对其水分进行了测定,所得结果在26.3~27.9 μg·g-1之间,平均值为27.4 μg·g-1,相对标准偏差为0.72%.
卡尔-菲休试剂
水分
六氟磷酸锂
Coulometric titration
Karl-Fisher reagent
Moisture
Lithium hexafluorophosphate
Abstract
Trace amounts of moisture in lithium hexafluorophosphate was determined by coulometric titration based on the reaction with Karl-Fisher reagent. Results of determination in a same sample with 10 different amounts of the sample solution introduced in the range from 0.5 to 5.0 mL,found by this method were in the range of 26.3 μg·g-1 to 27.9 μg·g-1 (av. 27.4 μg·g-1) with value of standard deviation 0.72%.
中图分类号 O657
所属栏目 工作简报
基金项目 国家科技攻关计划课题(2001BA602B-01)
收稿日期 2006/6/13
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备注宋士涛(1978-),男,山东人,博士研究生,主要从事盐湖资源综合利用研究.
引用该论文: SONG Shi-tao,MA Pei-hua,DENG Xiao-chuan,WU Su-xia,WANG Xiang-wen,SUN Jian-zhi. Determination of Microamounts of Moisture in Lithium Hexafluorophosphate by Coulometric Titration[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(1): 66～67
宋士涛,马培华,邓小川,吴素霞,王相文,孙建之. 库仑滴定法测定六氟磷酸锂中微量水分[J]. 理化检验－化学分册, 2008, 44(1): 66～67
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