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Apparatus for Electrical Conductivity Measurements of Clay Plugs in Corrosive Gases and at Low Temperatures
Author(s) -
Cloos Paul,
Mortland M. M.
Publication year - 1964
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1964.03615995002800050045x
Subject(s) - chemist , citation , library science , engineering physics , art history , chemistry , physics , art , computer science , organic chemistry
APPARATUS FOR ELECTRICAL CONDUCTIVITY MEASUREMENTS OF CLAY PLUGS IN CORROSIVE GASES AND AT LOW TEMPERATURES THE APPARATUS DESCRIBED in this paper was developed because of the need to measure electrical conductivity through clay plugs at various relative pressures of NHg. The objective of the measurements was to study electrical conductivities of clay systems in NHa atmosphere over similar relative pressure ranges as has been done in water vapor. Comparisons of ion mobility and activation energy for ion movement could then be made between the two solvents as well as interpretations as to the status of the exchangeable cations and the NHs itself. The apparatus could also be used to study the characteristics of other vapor-clay systems for similar purposes. In its construction, several points concerning the conductance cell, on the one hand, and the measuring device on the other, had to be kept in mind. The conductance cell had to satisfy three major requirements: (a) Nonreactivity to NHs, (b) vacuum tightness, and (c) operation at low temperature, near the boiling point of NHs, in order to allow conductivity measurements