Abstract
MEASUREMENTS of the refractive index of light and heavy ammonia were performed in continuation of former investigations1. The interferometer and the experimental arrangements were the same as before with the exception that this time one tube was made of glass and the other of quartz. A discharge tube containing hydrogen, a mercury lamp and a sodium lamp served as sources of light. The spectral lines in question were separated out by means of a monochromator from Winkel-Zeiss.
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References
O. E. Frivold und O. Hassel, ” Brechungsindex u. Molrefraktiondes SeH2 für die D2-linie”, Z. phys. Chemie, B, 27, 316 (1934). O. E. Frivold, O. Hassel und T. Skjulstad, ” Brechungsexponent u Molrefraktion des Selenwasserstoffs u. des Selendeuterids”, Phys. Z., 37, 134 (1936).
Loria, ” Lichtbrechung in Gasen”.
Z. Phys., 41, 378 (1927).
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FRIVOLD, O., HASSEL, O. & RUSTAD, S. Refractive Indexes of Ordinary and Heavy Ammonia. Nature 138, 330 (1936). https://doi.org/10.1038/138330b0
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DOI: https://doi.org/10.1038/138330b0
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