Table 3. Density ρ_sim (kg·m^–3) of Liquid Sulfolane Estimated by all Force Fields at Temperature T = 303 K and Pressure p = 1 bar^a.

force field	ρsimb	Δρ (%)
force field of ref (2)	1297.15 ± 1.8	2.71
OPLS	1250.00 ± 0.3	–1.02
this work	1292.28 ± 0.4	2.33
literature	1262,53 1262.329
	1261.9,54 1260.455
	1260.4,56 1260.8057

^aExperimental density at the same state point is ρ_exp = 1262.9 kg·m^–3 (ref (52)).

^bThe expanded uncertainty (U) is reported at 95% level of confidence.