Van der Waals Constants – A Material Property Database for organic liquids, ices, and solids on Titan

Van der Waals constants for each Titan-relevant species.

Species	a	b	Ref.
	(L²·bar·mol⁻²)	(L·mol⁻¹)
CH₄	2.303	0.0431	Haynes (2014)
C₂H₆	5.580	0.0651	Haynes (2014)
C₂H₄	4.612	0.0582	Haynes (2014)
C₂H₂	4.516	0.0522	Haynes (2014)
C₄H₂	18.856	0.1639	Yu et al. (2023)
C₆H₆	18.82	0.1193	Haynes (2014)
C₃H₈	9.39	0.0905	Haynes (2014)
C₃H₆	8.442	0.0824	Haynes (2014)
C₃H₄-a	8.235	0.07467	Weast (1972)
C₃H₄-p	8.40	0.0744	Weast (1972)
HCN	11.29	0.0881	Haynes (2014)
HC₃N	15.576	0.1053	Yu et al. (2023)
CO₂	3.658	0.0429	Haynes (2014)
CH₃CN	17.89	0.1169	Weast (1972)
C₂H₅CN	21.57	0.1369	Weast (1972)
C₂H₃CN	18.37	0.1222	Weast (1972)
C₂N₂	7.803	0.6952	Weast (1972)
C₄N₂	10.871	0.0781	Yu et al. (2023)