Premium
UV refractive indices of aqueous ammonium sulfate solutions
Author(s) -
Beyer Keith D.,
Ebeling Daniel D.
Publication year - 1998
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 - 10.1029/98gl02333
Subject(s) - ammonium sulfate , aqueous solution , refractive index , wavelength , sulfate , ultraviolet , saturation (graph theory) , ammonium , analytical chemistry (journal) , chemistry , materials science , optics , physics , chromatography , mathematics , organic chemistry , combinatorics
Refractive indices of aqueous solutions of ammonium sulfate were measured over a wavelength range of 240 to 400 nanometers (nm) at a temperature of 292 K. The solutions examined cover a broad range from the saturation concentration of ammonium sulfate in water at 292 K down to low concentrations. Solutions studied were: 42.5, 30.4, 23.6, 16.3, 8.5 weight per cent ammonium sulfate. Optical field measurements of these aerosols require knowing the necessary optical constants, and these constants in the ultraviolet (UV) are given here. Our results were found to be in agreement with literature values at longer wavelengths. Additionally, a Lorentz‐Lorenz analysis is presented to extend our results to other wavelengths and temperatures.