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The slow rate of change of surface tension observed by Addison with aqueous solutions of fatty alcohols cannot be explained by diffusion alone. It is assumed that the adsorption of non‐electrolyte solutes in the surface film is opposed by a constant potential energy barrier, and, on this basis,...
The characteristics of the faint Raman lines appearing in long exposures have been investigated for the molecules, SnBr 4 , SnCl 4 , and CCl 4 . All the lines observed have been classified as overtones and combination tones of the fundamentals. The depolarizations of the second‐order lines were...
The vacuum ultraviolet spectra of methyl and ethyl cyanide have been determined in the region 1000A to 1800A. Three members of a Rydberg series were found for methyl cyanide starting at 1292A, the limit of the series corresponding to an ionization potential of 11.96 ev. Vibrational band changes...
Tests have been made on two thermal diffusion columns with different annular spacing. The results indicate that the dependence of the separation on temperature and annular spacing predicted by Furry, Jones, and Onsager holds. The dependence on pressure is slightly different than was predicted....
Borazole, B 3 N 3 H 6 , shows no absorption bands in the region 2000A−4600A, at pressures of about 2 atmospheres in a 4‐cm cell. Since bands analogous to those of benzene are expected on theoretical grounds, it is concluded that the analogues of the benzene 2600A and 1830A bands are the...
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