Abstract
THE variation of the viscosity of a great number of liquids can be expressed by Guzmán's equation1 The values of the constants A and B for many liquids have been given by Ward2. It is now found that an approximately linear relationship holds between the values of B and log A (Fig. 1). Ionic liquids, hydroxylic liquids, and non-polar liquids have representative points close to three separate straight lines which appear to have a common origin (1.65, 0) on the log A versus B graph. Hence where m is a different constant for each of the three classes of liquid. The graph points for the four alphyl halides cited by Ward (loc. cit.) lie just below the line for the hydroxylic liquids; two of these points are shown in the graph. The data given by Ward for metallic liquids do not follow equation (2).
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References
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COPLEY, G. Viscosities of Three Classes of Liquids. Nature 147, 207–208 (1941). https://doi.org/10.1038/147207a0
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DOI: https://doi.org/10.1038/147207a0
