Abstract
MY experiments on the liquefaction of helium were carried out with a sample of that gas, sent to me by Prof. Ramsay from London, in a sealed glass tube holding about 140 ccm. I take this opportunity of rendering him my most sincere thanks. In his letter Prof Ramsay informed me that the gas had been obtained from the mineral clévite, and that it was quite free from nitrogen and other impurities, which could be removed by circulation over red-hot magnesium, oxide of copper, soda-lime, and pentoxide of phosphorus. The density of the gas was 2˙133 and the ratio of its specific heats (Cp/Cv) 1˙652; the latter figure indicating that the molecule of helium was monatomic, as had already been found to be the case with argon. Prof. Ramsay further informed me that the gas was only very slightly soluble in water; 100 ccm. of water dissolving scarcely 0˙7 ccm. of helium.
Article PDF
References
Translated from the original paper, by Prof. K. Olszewski, in the Bulletin de l'Académie des Sciences de Cracovie for June 1896, "Ein Versuch, das Helium zu verflünigen," by Morris Travers.
Rights and permissions
About this article
Cite this article
A Research on the Liquefaction of Helium1. Nature 54, 377–378 (1896). https://doi.org/10.1038/054377b0
Issue Date:
DOI: https://doi.org/10.1038/054377b0