2
0
2011
alo
moz
2
journal
Original
Alonso, I.[Ivan]
Mozo, I.[Ismael]
de la Fuente, I. G.[Isaias Garcia]
Gonzalez, J. A.[Juan Antonio]
Cobos, J. C.[Jose Carlos]
J. Chem. Eng. Data
2011
2020-09-29
Thermodynamics of Ketone + Amine Mixtures. Part VIII. Molar Excess Enthalpies at 298.15 K for n-Alkanone + Aniline or + N-Methylaniline Systems
Molar excess enthalpies, HmE, at 298.15 K and atmospheric pressure have been determined over the entire mole fraction range, using a Tian-Calvet microcalorimeter, for the systems: propanone, 2-butanone, 2-pentanone, or 2-heptanone + aniline or + N-methylaniline. The negative HmE values obtained for all of the mixtures reveal that interactions between unlike molecules are prevalent. Aniline solutions show more negative HmE values due to stronger amine-ketone interactions compared to those in N-methylaniline solutions. In addition, HmE increases with the size of the alkanone, which may be interpreted in terms of a weakening of interactions between unlike molecules. HmE varies somewhat differently in N-methylaniline solutions, probably due to the positive contribution to HmE is here more important. Molar excess internal energies at constant volume, UVmE, have been determined from the present HmE data using our previous measurements on molar excess volumes, compressibilities, and isothermal expansion coefficients. UVmE behaves similarly to HmE. UVmE values are much higher than those of HmE, which remarks the importance of the contribution of the equation of state term to HmE.
enthalpy
alkanones
anilines
interactions, equation of state contribution
10.1021/je200333p
7
56
3236-3241
1
InChI=1S/C3H6O/c1-3(2)4/h1-2H3
CSCPPACGZOOCGX-UHFFFAOYSA-N
acetone
2-propanone
dimethyl ketone
propan-2-one
propanone
pyroacetic ether
C3H6O
1
Commercial source
1
99.5
3
Stated by supplier
2
InChI=1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3
ZWEHNKRNPOVVGH-UHFFFAOYSA-N
butanone
2-butanone
butan-2-one
ethyl methyl ketone
methyl ethyl ketone
C4H8O
1
Commercial source
1
99.5
3
Stated by supplier
3
InChI=1S/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3
XNLICIUVMPYHGG-UHFFFAOYSA-N
pentan-2-one
2-pentanone
methyl n-propyl ketone
methyl propyl ketone
propyl methyl ketone
C5H10O
1
Commercial source
1
99
2
Stated by supplier
4
InChI=1S/C7H9N/c1-8-7-5-3-2-4-6-7/h2-6,8H,1H3
AFBPFSWMIHJQDM-UHFFFAOYSA-N
N-methylaniline
(methylamino)benzene
N-methylbenzenamine
N-methylphenylamine
N-phenylmethylamine
aniline, N-methyl-
anilinomethane
benzenamine, N-methyl-
methylaniline
phenylmethylamine
C7H9N
1
Commercial source
1
98
2
Stated by supplier
5
InChI=1S/C7H14O/c1-3-4-5-6-7(2)8/h3-6H2,1-2H3
CATSNJVOTSVZJV-UHFFFAOYSA-N
2-heptanone
butylacetone
methyl amyl ketone
methyl pentyl ketone
C7H14O
1
Commercial source
1
99
2
Stated by supplier
6
InChI=1S/C6H7N/c7-6-4-2-1-3-5-6/h1-5H,7H2
PAYRUJLWNCNPSJ-UHFFFAOYSA-N
aniline
aminobenzene
benzeneamine
phenylamine
C6H7N
1
Commercial source
1
99.5
3
Stated by supplier
1
1
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
785.094
6
1
0.192
2
2
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
799.969
6
1
0.186
3
3
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
801.522
6
1
0.307
4
4
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
982.237
6
1
1.055
5
5
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
811.162
6
1
0.306
6
6
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Mass density, kg/m3
Vibrating tube method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
298.15
5
2
101.3
2
1
1017.457
7
1
0.126
7
6
1
1
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
1
Liquid
1
0.113
4
1
-0.427
3
1
0.009
1
0.2145
4
1
-0.746
3
1
0.016
1
0.3052
4
1
-0.965
3
1
0.021
1
0.4107
4
1
-1.165
4
1
0.025
1
0.5014
4
1
-1.243
4
1
0.027
1
0.5082
4
1
-1.245
4
1
0.027
1
0.6015
4
1
-1.219
4
1
0.026
1
0.6991
4
1
-1.076
4
1
0.023
1
0.8045
4
1
-0.816
3
1
0.018
1
0.9002
4
1
-0.48
3
1
0.01
8
6
1
2
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
2
Liquid
1
0.1156
4
1
-0.378
3
1
0.008
1
0.1565
4
1
-0.499
3
1
0.011
1
0.2099
4
1
-0.648
3
1
0.014
1
0.3121
4
1
-0.879
3
1
0.019
1
0.4116
4
1
-1.075
4
1
0.023
1
0.5106
4
1
-1.173
4
1
0.025
1
0.6086
4
1
-1.171
4
1
0.025
1
0.7009
4
1
-1.071
4
1
0.023
1
0.8064
4
1
-0.814
3
1
0.018
1
0.9018
4
1
-0.469
3
1
0.01
9
6
1
3
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
3
Liquid
1
0.1113
4
1
-0.293
3
1
0.007
1
0.2052
4
1
-0.511
3
1
0.011
1
0.308
4
1
-0.766
3
1
0.017
1
0.4073
4
1
-0.926
3
1
0.02
1
0.5067
4
1
-1.027
4
1
0.022
1
0.5088
4
1
-1.029
4
1
0.022
1
0.6049
4
1
-1.049
4
1
0.023
1
0.6088
4
1
-1.051
4
1
0.023
1
0.7108
4
1
-0.94
3
1
0.02
1
0.7979
4
1
-0.737
3
1
0.016
1
0.8995
4
1
-0.432
3
1
0.009
10
6
1
5
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
5
Liquid
1
0.1124
4
1
-0.131
3
1
0.003
1
0.2179
4
1
-0.294
3
1
0.007
1
0.3082
4
1
-0.449
3
1
0.01
1
0.4052
4
1
-0.588
3
1
0.013
1
0.4523
4
1
-0.647
3
1
0.014
1
0.5096
4
1
-0.691
3
1
0.015
1
0.5554
4
1
-0.724
3
1
0.016
1
0.6024
4
1
-0.744
3
1
0.016
1
0.6026
4
1
-0.74
3
1
0.016
1
0.7034
4
1
-0.699
3
1
0.015
1
0.7934
4
1
-0.565
3
1
0.012
1
0.8479
4
1
-0.471
3
1
0.01
1
0.8481
4
1
-0.472
3
1
0.01
1
0.8972
4
1
-0.346
3
1
0.008
11
1
1
4
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
1
Liquid
1
0.1286
4
1
-0.335
3
1
0.007
1
0.2316
4
1
-0.5
3
1
0.011
1
0.3191
4
1
-0.598
3
1
0.013
1
0.4089
4
1
-0.666
3
1
0.014
1
0.5086
4
1
-0.672
3
1
0.015
1
0.6075
4
1
-0.622
3
1
0.013
1
0.7097
4
1
-0.525
3
1
0.011
1
0.8055
4
1
-0.381
3
1
0.008
1
0.9012
4
1
-0.204
3
1
0.005
12
2
1
4
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
2
Liquid
1
0.1361
4
1
-0.356
3
1
0.008
1
0.2283
4
1
-0.54
3
1
0.012
1
0.3187
4
1
-0.676
3
1
0.015
1
0.4093
4
1
-0.781
3
1
0.017
1
0.509
4
1
-0.816
3
1
0.018
1
0.6091
4
1
-0.779
3
1
0.017
1
0.7055
4
1
-0.672
3
1
0.015
1
0.8028
4
1
-0.506
3
1
0.011
1
0.903
4
1
-0.28
3
1
0.006
13
4
1
3
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
3
Liquid
1
0.1297
4
1
-0.332
3
1
0.007
1
0.2222
4
1
-0.528
3
1
0.011
1
0.3239
4
1
-0.693
3
1
0.015
1
0.406
4
1
-0.793
3
1
0.017
1
0.5083
4
1
-0.837
3
1
0.018
1
0.6057
4
1
-0.807
3
1
0.017
1
0.7044
4
1
-0.707
3
1
0.015
1
0.8058
4
1
-0.529
3
1
0.011
1
0.9031
4
1
-0.292
3
1
0.007
14
4
1
5
1
Principal objective of the work
BEM
XXX
7/20/2011
1
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol
Calvet calorimetry
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Temperature, K
Liquid
298.15
5
2
Pressure, kPa
Liquid
101
3
1
Mole fraction
5
Liquid
1
0.1219
4
1
-0.248
3
1
0.006
1
0.2133
4
1
-0.415
3
1
0.009
1
0.3078
4
1
-0.578
3
1
0.013
1
0.4076
4
1
-0.691
3
1
0.015
1
0.5029
4
1
-0.741
3
1
0.016
1
0.6064
4
1
-0.728
3
1
0.016
1
0.7063
4
1
-0.641
3
1
0.014
1
0.8037
4
1
-0.489
3
1
0.011
1
0.8975
4
1
-0.284
3
1
0.006