“…In order to better define the thermophysical properties of 2,5,8,11,14-pentaoxapentadecane or tetraglyme with other components and within the framework of the systematic investigation on the determination of thermophysical properties of binary liquid mixtures of interest to refrigeration industry [22][23][24][25][26][27] we report in this paper experimental relative permittivity, e, at frequency 1 MHz, and density on mixing, q, over the whole composition range at T = (288. 15, 293.15, 298.15, 303.15, 308.15, 318.15, and 328.15) K for the binary mixtures 2,5,8,11,14-pentaoxapentadecane or tetraglyme + (n-nonane or n-dodecane) at atmospheric pressure.…”