Viscosities of aqueous LiNO3 solutions at temperatures from 298 to 573 K and at pressures up to 30 MPa

The viscosities of four (0.265, 0.493, 1.074, and 1.540 mol·kg-1) aqueous LiNO3 solutions were measured in the liquid phase with a capillary flow technique. Measurements were made at four isobars (0.1, 10, 20, and 30 MPa). The range of temperatures was from 298 to 573 K. The total uncertainties of viscosity, pressure, temperature, and concentration measurements were estimated to be less than 1.5%, 0.05%, 15 mK, and 0.014%, respectively. The reliability and accuracy of the experimental method was confirmed with measurements on pure water for five selected isobars (1, 10, 20, 40, and 50 MPa) and at temperatures between 294.5 and 597.6 K. The experimental and calculated values from the International Association for the Properties of Water and Steam formulation for the viscosity of pure water show excellent agreement within their experimental uncertainty (AAD = 0.27%). The temperature, pressure, and concentration dependences of the relative viscosity (η/η0, where η0 is the viscosity of pure water) were studie...