高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (11): 1711.

• 研究简报 • 上一篇    下一篇

计时安培法测定镧在汞中的扩散系数

徐逸心, 牟兰, 张长庚   

  1. 贵州大学化学系, 贵阳, 550025
  • 收稿日期:1995-11-13 出版日期:1996-11-24 发布日期:1996-11-24
  • 通讯作者: 张长庚
  • 作者简介:徐逸心,男,57岁,副教授.
  • 基金资助:

    国家自然科学基金

Determination of the Diffusion Coefficient of La in Hg by Chronoamperometry

XU Yi-Xin, MOU Lan, ZHANG Chang-Geng   

  1. Department of Chemistry, Guizhou University, Guiyang, 550025
  • Received:1995-11-13 Online:1996-11-24 Published:1996-11-24

关键词: 镧, 镧汞齐, 扩散系数, 计时安培法

Abstract: Two methods were used to prepare La amalgam.One was displacing La3+ ion with Na amalgam, the other was mercuty cathode electrolytic method.The diffusion coefficient Dof La in Hg was determined by chronoamperometry in NaAc-HCl-NaSO4 pH=6 supporting electrode to be(4.90±0.11)×10-6cm2/s at 25℃

Key words: Lanthanum, La amalgam, Diffusion coefficient, Chronoamperometry

TrendMD: