The Separation of the Isotopes of Chlorine

descriptionPublicationkeyboard_double_arrow_right Article 14 Jul 1921 English Publisher:Springer Science and Business Media LLCJournal:Nature, volume 107, pages 619-619 (issn: 0028-0836, eissn: 1476-4687,

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Authors: Brönsted, J. N.; Hevesy, G.;

doi: 10.1038/107619a0

The Separation of the Isotopes of Chlorine

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Abstract

THE method outlined in our letter of September 30, 1920 (NATURE, vol. cvi., p. 144), and used for the partial separation of the isotopes of mercury, has enabled us to accomplish a partial separation of the isotopes of chlorine. When about half of a strong solution of hydrochloric acid cooled down to about —50° C. was evaporated in a high vacuum, the mixture of water and hydrogen chloride being condensed on a surface cooled with liquid air, the condensed part of the hydrochloric acid was found richer, and the remaining part poorer, as regards the lighter constituent of chlorine than the ordinary HC1.

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