Abstract
RECENT investigations dealing with the properties of liquid nitrobenzene, in the neighbourhood of the melting point, are yielding discordant results. Wolfke and Mazur,1 in a carefully purified specimen, observe discontinuities at 9.5° C.; this temperature, they suggest, represents the transformation point of two distinct modifications of liquid nitrobenzene. Stewart,2 using X-rays, confirms the assumption. Massy, Warren, and Wolfenden,3 Newton Friend,4 and Piekara5 were unable to discover any discontinuities. The interesting question arises as to how far these discrepancies may be accounted for by assuming slight impurities to have been present in the samples used.
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References
Mazur, NATURE, 126, 993; 1930: Wolfke and Mazur, NATURE, 127, 741; 1931: Mazur, NATURE, 127, 893; 1931.
G. W. Stewart, Phys. Rev., 39, 176; 1932.
Massy, Warren, Wolfenden, J.C.S., 91, 1932.
J. Newton Friend, NATURE, 129, 471; 1932.
A. Piekara, NATURE, 130, 98; 1932.
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DOBINSKI, S. Influence of Impurities on the Transformation Point of Liquid Allotropic Modifications. Nature 130, 662–663 (1932). https://doi.org/10.1038/130662b0
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DOI: https://doi.org/10.1038/130662b0
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