Journal of Applied Electrochemistry

, Volume 2, Issue 1, pp 51–57 | Cite as

Solid state ionics. High ionic conductivity solid in silver halide-silver sulphate system

  • T. Takahashi
  • E. Nomura
  • O. Yamamoto


The ionic conductivities and phase diagrams of AgI-Ag2SO4, AgCl-Ag2SO4 and AgBr-Ag2SO4 systems have been studied with the help of electrical conductivity, transport number, DTA and X-ray studies. In the AgI-Ag2SO4 system, the solid solution of α-AgI with Ag2SO4 was quenched to room temperature to have high ionic conductivity of 5·0×10−2 (ohm. cm)−1 at room temperature and 1·3×10−3 (ohm. cm)−1 at −78°C. The quenched solid solution was stable at −20°C, but gradually decomposed toβ-AgI andβ-Ag2SO4 at room temperature. The transport number of silver ion in this solid solution was about 1·0. In the AgCl-Ag2SO4 and AgBr-Ag2SO4 systems, the electrical conductivity was of the order of 10−4 to 10−6 (ohm. cm)−1 at room temperature.


Sulphate Physical Chemistry Electrical Conductivity Phase Diagram Solid Solution 


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Copyright information

© Chapman and Hall Ltd. 1972

Authors and Affiliations

  • T. Takahashi
    • 1
  • E. Nomura
    • 1
  • O. Yamamoto
    • 1
  1. 1.Department of Applied Chemistry, Faculty of EngineeringNagoya UniversityNagoyaJapan

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