Refractive Index Measurements of Molten Salts with Wave-front-shearing Interferometry
Open Access
- 1 August 1967
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 22 (8) , 1180-1184
- https://doi.org/10.1515/zna-1967-0806
Abstract
A wave-front-shearing interferometer has been used for refractive index measurements on liquids. A test series on water gave agreement within ±5 · 10 -5 with earlier data. The refractive index of molten potassium nitrate has been measured between 340 and 460°C and found to depend linearly on temperature according to the equation n=1.46478-1.579 · 10-4 · t at a wavelength of 6330 Å.Keywords
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