Abstract
IN your issue of the 23rd ult. (p. 284) you insert a paragraph describing experiments by M. Chabrié on compounds of selenium. While fully acknowledging the value of his work on the phenyl derivatives of selenium, I think it right to state that much of M. Chabrié's investigation has been anticipated by Mr. F. P. Evans and myself as long ago as 1884; and that several of his assertions are incomplete and incorrect. The tetrachloride, SeCl4, as we then showed, exists in vapour as such between 180° and 200°; with rise of temperature it dissociates, but even at 360°, dissociation is incomplete. In our paper (Trans. Chem. Soc., 45, 62) the progress of the dissociation is followed.
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RAMSAY, W. Compounds of Selenium. Nature 41, 343 (1890). https://doi.org/10.1038/041343b0
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DOI: https://doi.org/10.1038/041343b0
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