Excess enthalpy, density, and speed of sound determination for the ternary mixture (methyl tert-butyl ether+1-butanol+n-hexane)

Volumetric behavior of the ternary system (methyl tert-butyl ether + methylbenzene + butan-1-ol) and its binary sub-system (methyl tert-butyl ether + butan-1-ol) within the temperature range (298.15 to 328.15) K

“…Our experimental results are in good agreement with those of the literature [34,53,54]. The vibrating tube densimeter was used for determination of density in both our work and those described in the literature [33,34,[53][54][55].…”

“…The differences between our experimental results and those of the literature are more visible from the comparison of excess molar volumes (figures 3b and 3c). The values [34,53,54] are mostly in good mutual agreement within experimental error with our results except for the values published by Park et al [33] and Riggio et al [55]. This is probably caused by the lower precision of density in these references because the density was recorded only with four digits.…”

“…T = 298.15 K: our experimental values (solid line is plotted as a guide to the eye), Arce et al [54], Mascato 2002 et al [34]; T = 308.15 K:our experimental values (dotted line is plotted as a guide to the eye) and + Mascato 2002 et al[34].…”

“…Arce et al [54] and Mascato et al [34] reported not only density values but also speed of sound values (figure 3d). The adiabatic compressibility values calculated by equation (3) are in a good mutual agreement with our values (figure 3e).…”

“…The experimental uncertainty was estimated to be less than ±5 Á 10 À5 in mole fraction composition, as ±2 Á 10 À5 g Á cm À3 in density, as ±0.5 m Á s À1 in speed of sound, as ±3 Á 10 À3 cm 3 Á mol À1 in excess molar volume, as ±0.05 TPa À1 in excess adiabatic compressibility, and as ±5 MK À1 in excess isobaric thermal expansivity. [30,31] 0.723763 [30] 0.712897 [30] 0.70255 [36] 0.734915 [32] 0.724277 [32] 0.713419 [32] 0.73527 [3] 0.72472 [3] 0.71396 [36] 0.73533 [33] 0.72473 [34] 0.71401 [3] 0.73535 [34] 0.72482 [35,36] 0.73540 [35,36] 0.726185 [37] [46] 0.79807 [47] 0.80573 [47] 0.79812 [53] 0.80583 [33] 0.80584 [53] a The standard uncertainty in temperature for density measurement u(T) = ±0.001 K and the standard uncertainty in density u(q) = ±2 Á 10 À5 g Á cm À3 . [30] 1260.1 [40] 1218.01 [30] 1178.6 [3,4] 1303.9 [40] 1260.49 [30] 1220.3 [3] 1304 [48] 1262 [48] 1220.4 [4] 1304.77 [49] 1262.6 [3,4] 1305.4 [3,4] 1265 [50] Butan-1-ol 1240.01 1206.62 1173.38 1140...…”