Table 2.

Property changes and the corresponding presumption on structural features of SCW.

Parameters	Changing Trend with Temperature	Structural Features	References
dielectric constant	decreasing	Dipole moment decreasing and randomized orientation	Yoshii et al. [55]
electric conductivity	increasing	Transforming to ionic state	Chau et al. [84]
viscosity	decreasing	HB weakening a	Lamb and Jonas [85]
self-diffusion coefficient	increasing	HB weakening b	Lamb and Jonas [85] Brodholt and Wood [78]
HB vibration absorption	vanishment	HB breakage	Kalinichev [86]
OH stretching absorption	blue shift	HB breakage	Kohl et al. [80]

^a The authors observed the HB weakening by relating the spin-rotation relaxation time from NMR to viscosity from empirical calculations [77,87]; ^b Two studies independently got the same results by using NMR and MD simulations, respectively.