| 초록 |
Carbon-oxygen bond of ethers is not easily cleaved and these characteristics make ethers as inert solvents in many organic synthesis and in lubricating oil, agricultural pesticides, food, and flavors industry. Some ether compounds are used increasingly for gasoline additives recently. Studies on the behavior of mixing process are of great importance for developing separation processes and theoretical understanding of the nature of molecular interaction. However the mixing properties for ether compounds are still not readily available in spite of their increasing usage. In this work, we report the molar excess enthalpies (HE) data at 303.15K under atmospheric pressure for the binary systems of di-iso propyl ether(DIPE) + ethanol, DIPE + isooctane, ethanol + isooctane, PVE + ethanol and PVE + isooctane. Isooctane. The measured HE data was correlated well with Redlich-Kister polynomial. Additionally, infinitely dilute partial molar excess enthalpies for each binaries are calculated with fitted parameters and isoclines of HE for ternary systems, DIPE or PVE + ethanol + isooctane calculated by using Radojkovic equation. |
