High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF6]

High-pressure densities and derived volumetric properties (excess, apparent, and partial molar volumes) of binary mixtures of {methanol (1)+[BMIM][BF4] (2)}

“…All the mixtures were prepared by mass using a balance with a precision of 10 À4 g. The uncertainty in the concentration of the mole fraction of [BMIM] [BF 4 ] was less than 10 À4 . To verify the experimental apparatus and procedure, the density of pure reference fluids such as heavy water and pure methanol was measured over the same T and p ranges, and compared with the data reported [26]. Our instrument reproduced the IUPAC [27] accepted reference data for pure methanol within 0.01% to 0.04%.…”

Densities and Excess, Apparent, and Partial Molar Volumes of Binary Mixtures of BMIMBF4 + Ethanol as a Function of Temperature, Pressure, and Concentration

“…The uncertainty in the concentration of the mole fraction was less than 10 −4 . A detailed uncertainty analysis of the method (all the measured quantities, corrections, and error propagation) showed (see also Abdulagatov et al [30]) that the uncertainty in density measurements is 0.05 kg · m −3 at low pressures (near atmospheric pressure) and 0.15 kg · m −3 at high pressures (the combined expanded uncertainty, coverage factor is k = 2). This leads to maximum relative uncertainties of 0.02% for the performed measurements at high temperatures and high pressures and 0.01% at low temperatures and low pressures.…”

Experimental densities and derived thermodynamic properties of liquid propan-1-ol at temperatures from 298 to 423K and at pressures up to 40MPa

“…A Tait type EOS for propon-1-ol was also developed by Kubota et al [33]. This type of EOS was successfully applied by Sun et al [77] for other alcohols such as methanol, butanol and other liquids [78][79][80][81][82][83][84][85][86][87][88][89].…”

“…The (p, ,T) properties of propan-1-ol were studied using a modified high pressure-high temperature Anton-Paar vibrating-tube densimeter (model DMA HTP) [89,[94][95][96]. In this method the vibration period of the U-shape tube completely filled with the sample liquid is measured and then the densities of the sample liquid are computed by applying a principle of a fixed relation between and .…”