High-Pressure Liquid Viscosity of n-Hexadecane/ethyl Octanoate Mixtures

Abstract

The liquid viscosity of n-hexadecane/ethyl octanoate mixtures was measured at the mole fraction of 0.25, 0.5, and 0.75. The measurements were performed at the temperatures from 298 to 361 K and pressures up to 30 MPa. A self-established viscosity system based on the falling cylinder method was used for the present measurements. After careful evaluation, for the present measurements, the combined expanded relative uncertainty of the viscosity was less than 0.04 with a 0.95 confidence. The viscosity values at each mole fraction were correlated by Andrade–Tait equation, and this equation can successfully describe the experimental data within their estimated uncertainties.

Synthesis and x-ray diffraction study of the adduct of the Diels-Alder reaction between thiophene and maleic anhydride

“…It was previously believed that thiophene was not active in Diels-Alder reactions with any dienophile. However, high pressure can significantly change the physical properties (density, 14 dielectric permittivity, 14 viscosity, 15 etc.) and the reactivity of substances.…”