Refractive Index Measurements on Fused LiNO3 , RbNO3 and CsNO3 with a Modified Thermooptic Technique
Open Access
- 1 August 1976
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 31 (8) , 956-959
- https://doi.org/10.1515/zna-1976-0812
Abstract
A modified method for measuring absolute values of the refractive index and its temperature dependence is presented. A direct comparison is made between the refractive index of a liquid sample and ambient air. Values for LiNO3 , RbNO3 , and CsNO3 within a temperature interval of about 80 K above the melting point for several different wavelengths are presented as well as the calculated values of the molar refractivity and the absorption lines of the NO3 - ion.Keywords
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