2
0
2010
tri
0
journal
Original
Tripathi, A. D.[Atri D.]
Thermochim. Acta
2010
2020-09-29
EXCESS MOLAR ENTHALPIES OF DIBROMOMETHANE WITH ACETONITRILE,FURAN AND ACETOPHENONE 303.15 K
Excess molar enthalpies at 303.15 K have been determined for binary liquid mixtures of dibromomethane (CH2Br2) (DBM) with acetonitrile,furan and acetophenone.The excess molar enthalpies for the systems are endothermic for CH2Br2 + acetonitrile,and +furan whereas exothermic for the system CH2Br2 + acetophenone in nature. The excess partial molar enthalpies of the components have also been evaluated.These results indicate the existence of specific interactions between all these components. Key wwwwwwwords: Excess enthalpy,Microcalorimeter,Partial Molar Excess Enthalpy,Dibromomethane
Excess molar enthalpies
Partial molar enthalpies
Dibromomethane
Acetonitrile
Furan
Acetophenone
10.1016/j.tca.2010.01.005
1-2
500
128-130
1
InChI=1S/CH2Br2/c2-1-3/h1H2
FJBFPHVGVWTDIP-UHFFFAOYSA-N
dibromomethane
methylene bromide
CH2Br2
1
Not stated in the document
1
99.8
3
Gas chromatography
2
InChI=1S/C4H4O/c1-2-4-5-3-1/h1-4H
YLQBMQCUIZJEEH-UHFFFAOYSA-N
furan
oxacyclopentadiene
oxole
tetrole
C4H4O
1
Not stated in the document
1
99.8
3
Gas chromatography
3
InChI=1S/C2H3N/c1-2-3/h1H3
WEVYAHXRMPXWCK-UHFFFAOYSA-N
acetonitrile
cyanomethane
ethanenitrile
ethanonitrile
methanecarbonitrile
methyl cyanide
C2H3N
1
Not stated in the document
1
99.3
3
Gas chromatography
4
InChI=1S/C8H8O/c1-7(9)8-5-3-2-4-6-8/h2-6H,1H3
KWOLFJPFCHCOCG-UHFFFAOYSA-N
acetophenone
1-phenyl-1-ethanone
1-phenylethanone
methyl phenyl ketone
phenyl methyl ketone
C8H8O
1
Not stated in the document
1
99
2
Gas chromatography
1
1
1
3
1
Principal objective of the work
DAS
TRC
3/10/2010
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
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
303.15
5
1
Mole fraction
1
Liquid
1
0.1028
4
1
0.089
2
1
0.002
1
0.2166
4
1
0.146
3
1
0.002
1
0.3067
4
1
0.173
3
1
0.003
1
0.4007
4
1
0.179
3
1
0.003
1
0.5547
4
1
0.15
3
1
0.002
1
0.6564
4
1
0.107
3
1
0.002
1
0.7022
4
1
0.089
2
1
0.002
1
0.8786
4
1
0.023
2
1
0.001
2
1
1
2
1
Principal objective of the work
DAS
TRC
3/10/2010
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
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
303.15
5
1
Mole fraction
1
Liquid
1
0.1499
4
1
0.187
3
1
0.003
1
0.2828
4
1
0.232
3
1
0.003
1
0.3405
4
1
0.231
3
1
0.003
1
0.4247
4
1
0.212
3
1
0.003
1
0.6268
4
1
0.166
3
1
0.003
1
0.7204
4
1
0.144
3
1
0.002
1
0.8358
4
1
0.109
3
1
0.002
1
0.9381
4
1
0.055
2
1
0.001
3
1
1
4
1
Principal objective of the work
DAS
TRC
3/10/2010
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
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
303.15
5
1
Mole fraction
1
Liquid
1
0.1763
4
1
-0.102
3
1
0.002
1
0.3362
4
1
-0.148
3
1
0.002
1
0.4052
4
1
-0.162
3
1
0.003
1
0.4229
4
1
-0.16
3
1
0.002
1
0.5115
4
1
-0.16
3
1
0.002
1
0.6248
4
1
-0.151
3
1
0.002
1
0.7449
4
1
-0.114
3
1
0.002
1
0.852
4
1
-0.076
2
1
0.002