Add time:08/22/2019         Source:sciencedirect.com

This paper reports new measurements of densities and viscosities for the binary liquid mixture of triethylene glycol monomethyl ether CH3O(CH2)2O(CH2)2O(CH2)2OH + water as a function of composition at T = (293.15, 303.15, 313.15, 323.15, 333.15) K under atmospheric pressure. Densities were determined using a capillary pycnometer. Viscosities were measured with Ubbelohde capillary viscometer. From the experimental data, the excess molar volumes VE, and viscosity deviations δη, and the excess energies of activation for viscous flow ΔG⁎E were calculated. These data have been correlated by the Redlich–Kister type equations to obtain their coefficients and standard deviations. The results suggest that molecular interaction between triethylene glycol monomethyl ether and water is stronger than that of diethylene glycol monomethyl ether and water.

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