Mass Diffusion Coefficients of Dimethyl Carbonate in Heptane and in Air at <i>T</i> = (278.15 to 338.15) K

Abstract

The mass diffusion coefficients of dimethyl carbonate in heptane and in air were measured at T = (278.15 to 338.15) K under atmospheric pressure. The experiments were carried out using a digital holographic interferometry system that was constructed by our group. The mass diffusion coefficient of KCl in standard aqueous solution at a temperature of 298.15 K and condensation of 0.33 mol·L −1 was measured to verify the accuracy and reliability of the system. The experimental uncertainties in temperature and mass diffusion coefficient are estimated to be no greater than ± 0.16 K and ± 0.2 %, respectively.