High-pressure viscosity of aqueous alkali halide solutions at 298.2 K
Nakai Takehiro; Sawamura Seiji; Taniguchi Yoshihiro
Abstract:Pressure and concentration dependences of viscosity for aqueous KCl and Csl solutions were examined at 298.2 K and compared with those for aqueous NaCl and CsCl solutions. The viscosity minimum, observed for pure water with increasing pressure, became shallow or disappeared by adding alkali halides. The Jones -Dole B coefficients for Na+, K+, Cs+, Cl-, and I- increased with increasing pressure and then decreased after having a maximum. These results are discussed in terms of water structure and dielectric friction effect. Key Words:high-pressure, viscosity, alkali halide, Jones-Dole equation, B coefficient