Densities and Isothermal Compressibilities at Pressures up to 20 MPa of the Systems N,N-Dimethylformamide or N,N-Dimethylacetamide + α,ω-Dichloroalkane

Densities of pure N, N -dimethylformamide, N, N -dimethylacetamide, 1,2-dichloroethane, 1,4-dichlorobutane, and 1,6-dichlorohexane were measured at (288.15, 298.15, 308.15, and 318.15) K at pressures up to 20 MPa, and from them, isothermal compressibilities were obtained. Densities for N, N -dimethylformamide or N, N -dimethylacetamide + 1,2-dichloroethane, or + 1,4-dichlorobutane, or + 1,6-dichlorohexane at 298.15 K and at pressures up to 20 MPa were measured, and isothermal compressibilities were obtained.