Abstract
We measured viscosity of KCl and NaCl liquids up to 7.3 GPa and observed a clear discontinuity in the pressure dependence of viscosity for liquid KCl at around 2 GPa. The viscosity of liquid KCl increased rapidly at 1.5--2.2 GPa, above which it remained virtually constant. Structural data of KCl liquid also showed a pronounced change signified by the ratio r${}_{2}$/r${}_{1}$, where r${}_{1}$ and r${}_{2}$ are the nearest- and the second-neighbor distances, respectively. In contrast, both viscosity and the r${}_{2}$/r${}_{1}$ ratio changed linearly with pressure for liquid NaCl. Our observation suggests that viscosities of KCl and NaCl liquids strongly correlate with the structural changes in terms of the r${}_{2}$/r${}_{1}$ ratio. The viscosity anomaly in liquid KCl is found to be at pressures close to that of the B1-B2 transition in solid KCl.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
