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Excess molar volumes, and changes of isentropic compressibilities of ternary { acetone +  methanol  + ( 2-methyl-1-propanol, or 3-methyl-1-butanol)} at T =  298.15 K

✍ Scribed by Lidia M. Casás; Gonzalo Marino; Miguel Iglesias; Beatriz Orge; José Tojo; Laura Mosteiro


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
133 KB
Volume
33
Category
Article
ISSN
0021-9614

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✦ Synopsis


The speed of sound, and density of the ternary {acetone + methanol + (2-methyl-1propanol, or 3-methyl-1-butanol)} were measured at T = 298.15 K, and atmospheric pressure. The experimental measurements allowed the calculation of the corresponding derived properties, as well as the analysis of the dependence of the compressibility solvation numbers as a function of concentration. The values of the physical properties were compared with the results obtained by different estimative methods. The role of the branched alcohols in separation distillation sequences for (acetone + methanol) is discussed in the light of the thermodynamic measurements obtained.


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TABLE 1. Densities ρ for the pure liquids at T = 298.15 K Liquid ρ/(g • cm -3 ) expt lit 1-Cholorooctane 0.86875 0.86876 (4) 1-Butanol 0.80575 0.80576