物理化学学报 >> 1985, Vol. 1 >> Issue (04): 384-388.doi: 10.3866/PKU.WHXB19850414

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HCl-HClO4-H2O体系中高氯酸活度系数的测定

陈国华   

  1. 山东海洋学院化学系
  • 收稿日期:1984-08-10 修回日期:1985-03-25 发布日期:1985-08-15
  • 通讯作者: 陈国华

DETERMINATION OF ACTIVITY COEFFICIENTS OF PERCHLORIC ACID IN SYSTEM OF HCl-HClO4-H2O

Chen Guohua   

  1. Department of Chemistry, Shandong College of Oceanology
  • Received:1984-08-10 Revised:1985-03-25 Published:1985-08-15
  • Contact: Chen Guohua

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摘要：

Abstract: Mean activity coefficients of perchloric acid in system of HCl-HClO_4-H_2O at a constant total ionic strengths (I=0.7, 0.5, 0.3 and 0.1) have been measured by E.M.F. method from a cell without liquid junctions. The cell consists of a perchloric ion sensitive electode and a glass electrode. Results obtained show that the relationships between the logarithm of the mean activity coefficients of perchloric acid and the concentration of each of the two acids in the above mixtures obey Harned's rule. The respective Harned's coefficients a_(21) have been computed by the least square method.