Abstract
Best conditions for magnetic susceptibility measurements of diamagnetic or slightly paramagnetic fluids are stated. It is pointed out that the classical Gouy method is the most favorable.
A simple apparatus consisting essentially of a slightly modified Cahn RH Electrobalance, a permanent magnet, and thermostatic devices, is described. This apparatus can operate under high vacuum or in controlled gas atmosphere from −30 to 150 C with an accuracy about 2 × 10−10 emu even on samples with a total weight greater than 50–60 g. Operating procedures are discussed to minimize experimental errors. The apparatus was used for a new determination of magnetic susceptibility temperature coefficient of water over the temperature range 0–80 C; a comparison between the results obtained and the existing data is reported. Finally, the use of this apparatus is suggested for simultaneous adsorption and magnetic-susceptibility change measurements on powders which possess no paramagnetism.
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© 1970 Plenum Press, New York
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Cini, R., Torrini, M. (1970). Apparatus for the Accurate Measurements of Magnetic Susceptibility with the Help of a Vacuum Electrobalance. In: Massen, C.H., van Beckum, H.J. (eds) Vacuum Microbalance Techniques. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0725-0_5
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DOI: https://doi.org/10.1007/978-1-4757-0725-0_5
Publisher Name: Springer, Boston, MA
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