Sulfate solutions (Biermann et al.)

Aerosol Complex Refractive indices m=p-iq
H₂SO₄/H₂O solutions
T=188 K

**Real indices p**
# entries	Spectral range (micron)	Concentration by weight (%)*
8191	0.6104 -5000	57%
8191	0.6104 -5000	64%

**Imaginary indices q**
# entries	Spectral range (micron)	Concentration by weight (%)*
3942	2.3629 -23.1492	57%
3991	2.3353-23.1492	64%

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Reference:

Biermann, U. M., B. P. Luo, and Th. Peter, Absorption Spectra and Optical Constants of Binary and Ternary Solutions of H₂SO₄, HNO_3, and H₂O in the Mid Infrared at Atmospheric Temperatures, J. Phys. Chem. A, vol. 104, 783-793 (2000).