Summary of the parameters deriving from the fits of ΔΔG_u^a.

System	Δnci	Δw(T0m)	dΔcp/dcs
NaCl	0.17	−50.4	0
LiCl	0.17	−26.2	0
NH4Cl	0.17	−19.4	0
NaSCN	−0.17	103	2.5

^aΔn_ci: number of ions released or taken up during unfolding (eqn (3) and (4)); Δw: effect of water release or uptake (eqn (3) and (4)); dΔc_p/dc_s: parameter describing the dependence of Δw on temperature (eqn (8) and (10)).