Viscosities of Aqueous NaCl Solutions Containing CO₂ at High Pressures

Abstract

Viscosity measurements of aqueous NaCl solutions containing CO2 along three isotherms at 273 K, 276 K, and 278 K at pressures up to 30 MPa are reported. The measurements have been carried out within a falling capillary type viscometer and have an estimated uncertainty of ±0.8%. The experimental values were correlated in terms of pressure, temperature, and concentrations of NaCl and CO2. The correlation reproduces the experimental values to within ±1.3%.