Aerosol Complex Refractive indices m=p-iq
H2SO4/H2O solutions
75% H2SO4 concentration by weight, T=293 K

 
Real and imaginary refractive indices 
# entries
Spectral range (micron)
Relative Humidity (%)*
  61 
0.25 - 40
0
 61
 0.25 - 40 
50
 61
0.25 - 40
70
 61
 0.25 - 40 
80
61
0.25 - 40
90
61
0.25 - 40
95
61
0.25 - 40
98
61
0.25 - 40
99

 
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Reference: 

 Fenn, R. W., Clough, S. A., Gallery, W. O., Good, R. E., Kneizys, F. X., Mill, J. D., Rothman, L. S. and Shettle, E.P., "Optical and infrared properties of the atmosphere", Chapter 18 in Handbook of Geophysics and the Space Environment, Edited by A.S. Jursa, Air Force Geophysics Laboratory, Hanscom AFB, MA, (1985)