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Study on the Electrical Conductivity of 0.025 mol NaCl Solution at 0.25–3.75 GPa and 20–370°C
Author(s) -
Haifei Zheng,
Hongsen Xie,
Yousheng Xu,
Maoshuang Song,
Jie Guo,
Yueming Zhang
Publication year - 1997
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1997.tb00368.x
Subject(s) - conductance , electrical resistivity and conductivity , electrical resistance and conductance , logarithm , classification of discontinuities , conductivity , thermodynamics , chemistry , materials science , condensed matter physics , analytical chemistry (journal) , physics , composite material , mathematics , environmental chemistry , mathematical analysis , quantum mechanics
The electrical conductance of 0.025 mol NaCl solution was measured at 0.25–3.75 GPa and 20–370°C As shown by the results, the conductance increases with temperature, and there is a liner relation between the reciprocal of temperature and the logarithm of the conductance but their slopes are different at different pressures. The relations between the conductance and pressure is rather complex and there are some discontinuities: in the range of 2.25–3.75 GPa, the conductance increases with the pressure; in the range of 1.25–2.0 GPa, the conductance is not related to the pressure; and at a pressure of 0.75 GPa, the conductance is higher than that at the pressures nearby. This reflects that the NaCl solution has rather different properties of electronic chemistry at various pressures, and probably is an important cause for the existence of the layers with high electrical conductance and low velocity in the Earth's crust and mantle.