Refractive Index – A Material Property Database for organic liquids, ices, and solids on Titan

Refractive index at the visible wavelength (n_vis) for the Titan-relevant organic liquids and ices with polar intermolecular force contribution.

Species	Refractive Index at the Visible Wavelength (n_vis)	Temp. (K)	Ref.
HCN (liquid) HCN (solid)	1.2614 1.3425	293 T_tri	Rumble (2020) Yu et al. (2023)
HC₃N (liquid) HC₃N (solid)	1.38699 1.5320	290 T_tri	Wohlfarth et al. (1996) Yu et al. (2023)
CH₃CN (liquid) CH₃CN (solid)	1.49138 − 5.0236 × 10⁻⁴T 1.4612	278-328 T_tri	Kroenlein et al. (2011) Yu et al. (2023)
C₂H₅CN (liquid) C₂H₅CN (solid)	1.5114 − 4.9622 × 10⁻⁴T 1.4719	292-327 T_tri	Kroenlein et al. (2011) Yu et al. (2023)
C₂H₃CN (liquid) C₂H₃CN (solid)	1.5241 − 4.5398 × 10⁻⁴T 1.5176	293-308 T_tri	Kroenlein et al. (2011) Yu et al. (2023)