Densities, Excess Molar Volumes, Viscosities, Speeds of Sound, Excess Isentropic Compressibilities, and Relative Permittivities for C_mH_2m+1(OCH₂CH₂)_nOH (m = 1 or 2 or 4 and n = 1) + Benzene, + Toluene, + (o-, m-, and p-) Xylenes, + Ethylbenzene, and + Cyclohexane

Abstract

Measurements on densities, speeds of sound, viscosities, and relative permittivities for 21 binary mixtures of alkoxyethanols (2-methoxyethanol, 2-ethoxyethanol, and 2-butoxyethanol) + benzene, + toluene, + (o-, m-, and p-) xylenes, + ethylbenzene, and + cyclohexane at different temperatures are reported. The excess molar volumes, excess isentropic compressibilities, deviations in dynamic viscosities, speeds of sound, and relative permittivities have been calculated across the mole compositions. The compositional variation of excess and deviation functions has been expressed in terms of the Redlich-Kister equation.

Influence of Temperature on Thermodynamic Properties of Methyl t-Butyl Ether (MTBE) + Gasoline Additives

“…The uncertainty in mole fraction was estimated to be no larger than ±5 × 10 −4 . The sound speeds and densities were measured with [9] 1036.94 1035 [12] Isooctane 0.687749 0.68762 [9] 1082.20 1083 [13] Ethylbenzene 0.862459 0.86244 [10] 1318.36 1318 [14] Benzene 0.873520 0.87356 [10] 1298.27 1299 [14] Toluene 0.862173 0.86214 [10] 1303.44 1304 [14] tert-Butyl alcohol (303. 15 K) 0.775212 0.77572 [11] 1099.02 1104.8 [15] an Anton Paar DSA-5000 device with a precision of ±1 m · s −1 and ±10 −5 g · cm −3 .…”

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

“…A Redlich-Kister equation type [8] was used to correlate the derived properties of the binary mixtures, by the unweighted least squares method, all experimental points weighting equally: [17] 1318.36 1318 [18] Isooctane 0.687749 0.68762 [19] 1082.20 1083 [20] Tert-Butyl-Alcohol 0.775212 0.77572 [21] 1099.02 1104.8 [22] p-Xylene 0.856675 0.85658 [17] 1305.39 1308 [18] m-Xylene 0.859890 0.85983 [17] 1320.92 1320 [18] o-Xylene 0.874968 0.87573 [17] 1341.51 1348 [18] Table 2. Continued.…”

Speeds of Sound and Excess Isentropic Compressibilities of Butyl Acetate+Aromatic Hydrocarbons

“…Benzene, toluene, and xylenes (Merck) were purified by standard procedures [9,10]. The purities of the purified samples were checked by measuring their densities, refractive indices, and speeds of sound at 308.15 K and these agreed reasonably well with the corresponding published report values [9,[11][12][13][14] as shown in Table 1.…”