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Densities and refractive indices of H 2 SO 4 /HNO 3 /H 2 O solutions to stratospheric temperatures
Author(s) -
Luo Beiping,
Krieger Ulrich K.,
Peter Thomas
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl03581
Subject(s) - extrapolation , refractive index , ternary operation , ultraviolet , materials science , aqueous solution , binary number , infrared , wavelength , analytical chemistry (journal) , physics , chemistry , optics , mathematics , environmental chemistry , mathematical analysis , optoelectronics , computer science , programming language , arithmetic
The Lorentz‐Lorenz relation is used to estimate the refractive index of aqueous H 2 SO 4 /HNO 3 solutions (5–70 wt%) for wavelengths from the near‐ultraviolet to the near‐infrared (0.35–2 µm) and for temperatures from 370 K to stratospheric temperatures (185 K). The molecular refractivities of the involved species are based on data of the binary solutions at room temperature. For the extrapolation to low temperatures, a careful estimate of the density of the ternary solutions has been performed. The accuracy of the model predictions is estimated to be better than 2%.