Letter | Published:

Ionisation in Hydrogen Chloride Vapour

Nature volume 119, pages 197198 (05 February 1927) | Download Citation

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Abstract

BEFORE a meeting of the American Physical Society in April 1925, I reported some preliminary results of an investigation of ionisation by electron impact in hydrogen chloride vapour at low pressures, using the familiar method of mass spectrum analysis to identify the ions produced. I had observed in large numbers both positive and negative ions of which the ratio of mass to charge was about 36 times that of the hydrogen nucleus. At relatively high pressures I had also detected positive ions of m/e about 72 times the same unit. At all pressures the ions H+, H2+, and (H2O)+ had been present, although in general there were fewer of these than of the other types.

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  1. (National Research Fellow), Jefferson Physical Laboratory, Harvard University, Cambridge, Mass., U.S.A., Dec. 16.

    • HENRY A. BARTON

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DOI

https://doi.org/10.1038/119197c0

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