Measurements of some physical properties of binary liquid mixtures (N-methyl-2-pyrrolidone+an aliphatic ester) at several temperatures and data processing of viscosity and ultrasonic speed

Thermodynamic Studies of Molecular Interactions in Mixtures Containing Tetrahydropyran, 1,4-Dioxane, and Cyclic Ketones

“…The decrease in C P E values with increase in temperature may be associated with a decrease of molecular interactions between Table 3. Binary Adjustable Parameters, X n (X = V or κ S or H or C P ) (n = 0 to 2) of eq 6 with Their Standard Deviations, σ( 1152.3 H (1) 215.9 H (2) 195.5 σ(H E )/J•mol − , H E , and C P E data were next tested in terms of graph theory.…”

“…+ CHO or CHPO(2) mixtures are positive over entire composition. Further, while C P E values of THP (1) + CHO or CHPO(2), D (1) + CHPO(2) mixtures are positive, the values for D (1) + CHO(2) are negative over the entire mole fraction range.…”

“…+ CHO or CHPO(2) mixtures are positive over entire composition. Further, while C P E values of THP (1) + CHO or CHPO(2), D (1) + CHPO(2) mixtures are positive, the values for D (1) + CHO(2) are negative over the entire mole fraction range. The V E , κ S E , H E , and C P E data were then fitted to the Redlich−Kister equation to obtain binary adjustable parameters and standard deviations.…”

“…The thermodynamic properties of liquid mixtures are important for the convenient design of industrial processes involving chemical separation, mass transfer, heat transfer, and fluid flow. − Such properties provide insight about the state of liquids in pure as well as the mixed state along with the interactions operating among the constituent molecules and can also be used for the development or testing of theories/models describing the thermodynamic behavior of mixtures. − Cyclic ethers have attracted interest as a model substance for biosystems, separation techniques, chemical reactions such as in synthetic and natural resin, extraction of animal and vegetable oil; as a cosolvent in printing inks; and as dispersing agent in textile chemistry. − Tetrahydropyran is a liquid for next generation heterocyclic oxygenated fuels . It is widely used in petrochemical and pharmaceutical industries and also for the synthesis of biologically active compounds with analgesic, anti-inflammatory, or cytotoxic activity. − 1,4-Dioxane is a model molecule to correlate its physicochemical properties with polyethers possessing an OCCO unit .…”

Analysis of thermophysical properties of binary systems containing ethyl acetate and 1-propanol or 1-butanol

“…For mixing properties, the estimated uncertainties are 6•10 -8 m 3 mol -1 for excess molar volume, 0.46 % for viscosity deviation, 8.6•10 −4 for refractive index deviation and 0.96•10 −12 Pa -1 for excess isentropic compressibility. [6], () [7], () [8], () [9], () [10], () [11], () [12], () [13], () [14], () [15], () [16], () [17], () [18], () [19], () [20], () [21], () [22], () [23], () [24], () [25], () [26], () [27], () [28], () [29], () [30], () [31], () [32], () [33], () [34], () [35], () [36], () [37], () [38], () [39], () [40], () [41], () [42], () [43]. The lines are a guide to the eye.…”