2
0
2009
liu
ren
0
journal
Original
Liu, C.[Chunli]
Ren, C.[Chonggui]
J. Chem. Eng. Data
2009
2020-09-29
Transfer Properties of Amino Acids from Water to Aqueous Sodium Sulfate Solutions at 298.15 K
Enthalpies of solution and densities of glycine, l-alanine, and l-serine in aqueous solutions of Na2SO4 were measured at 298.15 K. Transfer enthalpies (?trH) and transfer partial molar volumes (?trV0) of amino acids from water to aqueous solutions of Na2SO4 were derived. The ?trH of l-alanine are positive, and the ?trH of glycine and l-serine are negative. The transfer volume of all three of the amino acids are positive. The relative order in the negative value of ?trH of amino acids in the same concentration of Na2SO4 is l-serine less than glycine less than l-alanine, whereas the sequence of ?trV0 is l-serine greater than glycine greater than l-alanine. The results are discussed in terms of the cosphere overlap model.
10.1021/je900218z
12
54
3296-3299
1
InChI=1S/H2O/h1H2
XLYOFNOQVPJJNP-UHFFFAOYSA-N
water
H2O
1
Commercial source
1
99.5
3
Estimated by the compiler
2
InChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
PMZURENOXWZQFD-UHFFFAOYSA-L
sodium sulfate
sodium sulphate
Na2O4S
1
Commercial source
1
99
2
Stated by supplier
2
Dried in a desiccator
3
InChI=1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5)
DHMQDGOQFOQNFH-UHFFFAOYSA-N
2-aminoacetic acid
aminoacetic acid
aminoethanoic acid
glycine
C2H5NO2
1
Commercial source
1
99
2
Stated by supplier
2
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
4
InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m0/s1
QNAYBMKLOCPYGJ-REOHCLBHSA-N
(S)-2-aminopropanoic acid
(S)-(+)-alanine
.alpha.-alanine
L-.alpha.-aminopropionic acid
L-2-aminopropanoic acid
L-alanine
C3H7NO2
1
Commercial source
1
99
2
Stated by supplier
2
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
5
InChI=1S/C3H7NO3/c4-2(1-5)3(6)7/h2,5H,1,4H2,(H,6,7)/t2-/m0/s1
MTCFGRXMJLQNBG-REOHCLBHSA-N
L-serine
(S)-(+)-serine
(S)-2-amino-3-hydroxypropanoic acid
(S)-serine
.alpha.-amino-.beta.-hydroxypropionic acid
.beta.-hydroxyalanine
C3H7NO3
1
Commercial source
1
99
2
Stated by supplier
2
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
Crystallization from solution
Dried in a desiccator
Dried by vacuum heating
1
1
1
2
1
Principal objective of the work
RDC
TRC
12/17/2009
1
Mass density, kg/m3
VIBTUB:UFactor:6
Liquid
Direct value, X
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
1
Molality, mol/kg
2
Liquid
1
0.2
4
1
1021.93
6
1
0.32
1
0.4999
4
1
1057.3
6
1
0.4
1
0.4999
4
1
1057.32
6
1
0.4
1
0.4999
4
1
1057.31
7
1
0.403
1
0.6999
4
1
1079.92
6
1
0.46
1
0.6999
4
1
1079.94
6
1
0.46
1
0.6999
4
1
1079.93
6
1
0.46
1
0.9868
4
1
1111.12
6
1
0.54
1
0.9979
4
1
1112.28
6
1
0.54
1
0.9999
4
1
1112.48
6
1
0.54
1
1.196
5
1
1133.04
6
1
0.59
1
1.1998
5
1
1133.46
6
1
0.59
1
1.2001
5
1
1133.45
6
1
0.59
2
3
1
1
1
2
1
Principal objective of the work
VVD
TRC
11/7/2013
1
Molar enthalpy of solution, kJ/mol
microcalorimetry
Liquid
Difference with the reference state, X-X(REF)
Pure solute at the same temperature and pressure
Crystal
1
2
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
3
Molality, mol/kg
3
Liquid
0
1
1
Solvent: Molality, mol/kg
2
Liquid
1
0
2
1
14.15
4
1
0.41
1
0.1999
4
1
13.85
4
1
0.4
1
0.4986
4
1
13.58
4
1
0.4
1
0.7004
4
1
13.23
4
1
0.39
1
0.9979
4
1
12.9
4
1
0.38
1
1.2
5
1
12.78
4
1
0.37
3
3
1
1
1
2
1
Principal objective of the work
TEL
TRC
12/17/2009
1
Mass density, kg/m3
VIBTUB:UFactor:6
Liquid
Direct value, X
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
1
Molality, mol/kg
2
Liquid
2
Molality, mol/kg
3
Liquid
1
0.2
4
2
0
2
1
1021.93
6
1
0.32
1
0.2
4
2
0.1171
4
1
1025.43
6
1
0.33
1
0.2
4
2
0.1624
4
1
1026.77
6
1
0.33
1
0.2
4
2
0.2705
4
1
1029.93
6
1
0.34
1
0.2
4
2
0.3482
4
1
1032.18
6
1
0.34
1
0.2
4
2
0.4486
4
1
1035.04
6
1
0.35
1
0.2
4
2
0.5666
4
1
1038.36
6
1
0.36
1
0.4999
4
2
0
2
1
1057.3
6
1
0.4
1
0.4999
4
2
0.1044
4
1
1060.2
6
1
0.41
1
0.4999
4
2
0.1623
4
1
1061.79
6
1
0.41
1
0.4999
4
2
0.2655
4
1
1064.6
6
1
0.42
1
0.4999
4
2
0.3604
4
1
1067.14
6
1
0.43
1
0.4999
4
2
0.4737
4
1
1070.13
6
1
0.43
1
0.4999
4
2
0.5653
4
1
1072.53
6
1
0.44
1
0.6999
4
2
0
2
1
1079.92
6
1
0.46
1
0.6999
4
2
0.1019
4
1
1082.61
6
1
0.46
1
0.6999
4
2
0.1596
4
1
1084.11
6
1
0.47
1
0.6999
4
2
0.2296
4
1
1085.92
6
1
0.47
1
0.6999
4
2
0.3329
4
1
1088.56
6
1
0.48
1
0.6999
4
2
0.4428
4
1
1091.34
6
1
0.49
1
0.6999
4
2
0.5563
4
1
1094.16
6
1
0.49
1
0.9868
4
2
0
2
1
1111.12
6
1
0.54
1
0.9868
4
2
0.1038
4
1
1113.66
6
1
0.54
1
0.9868
4
2
0.1834
4
1
1115.59
6
1
0.55
1
0.9868
4
2
0.236
4
1
1116.85
6
1
0.55
1
0.9868
4
2
0.3413
4
1
1119.36
6
1
0.56
1
0.9868
4
2
0.4352
4
1
1121.57
6
1
0.56
1
0.9868
4
2
0.5189
4
1
1123.52
6
1
0.57
1
1.196
5
2
0
2
1
1133.04
6
1
0.59
1
1.196
5
2
0.1087
4
1
1135.56
6
1
0.6
1
1.196
5
2
0.1732
4
1
1137.04
6
1
0.6
1
1.196
5
2
0.2843
4
1
1139.56
6
1
0.61
1
1.196
5
2
0.3971
4
1
1142.08
6
1
0.62
1
1.196
5
2
0.4858
4
1
1144.04
6
1
0.62
1
1.196
5
2
0.5539
4
1
1145.53
6
1
0.63
4
4
1
1
1
2
1
Principal objective of the work
VVD
TRC
11/7/2013
1
Molar enthalpy of solution, kJ/mol
microcalorimetry
Liquid
Difference with the reference state, X-X(REF)
Pure solute at the same temperature and pressure
Crystal
1
2
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
3
Molality, mol/kg
4
Liquid
0
1
1
Solvent: Molality, mol/kg
2
Liquid
1
0
2
1
7.57
3
1
0.22
1
0.2
4
1
7.6
3
1
0.22
1
0.5
4
1
7.68
3
1
0.22
1
0.6999
4
1
7.76
3
1
0.23
1
0.9993
4
1
7.85
3
1
0.23
1
1.2
5
1
7.95
3
1
0.23
5
4
1
1
1
2
1
Principal objective of the work
TEL
TRC
12/17/2009
1
Mass density, kg/m3
VIBTUB:UFactor:6
Liquid
Direct value, X
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
1
Molality, mol/kg
2
Liquid
2
Molality, mol/kg
4
Liquid
1
0.2
4
2
0
2
1
1021.93
6
1
0.32
1
0.2
4
2
0.1214
4
1
1025.14
6
1
0.32
1
0.2
4
2
0.1689
4
1
1026.38
6
1
0.33
1
0.2
4
2
0.2497
4
1
1028.46
6
1
0.33
1
0.2
4
2
0.2925
4
1
1029.55
6
1
0.34
1
0.2
4
2
0.3915
4
1
1032.05
6
1
0.34
1
0.2
4
2
0.5148
4
1
1035.12
6
1
0.35
1
0.4999
4
2
0
2
1
1057.32
6
1
0.4
1
0.4999
4
2
0.1003
4
1
1059.71
6
1
0.41
1
0.4999
4
2
0.1365
4
1
1060.56
6
1
0.41
1
0.4999
4
2
0.1854
4
1
1061.7
6
1
0.41
1
0.4999
4
2
0.2813
4
1
1063.91
6
1
0.42
1
0.4999
4
2
0.3797
4
1
1066.12
6
1
0.42
1
0.4999
4
2
0.4645
4
1
1068.03
6
1
0.43
1
0.6999
4
2
0
2
1
1079.94
6
1
0.46
1
0.6999
4
2
0.1017
4
1
1082.17
6
1
0.46
1
0.6999
4
2
0.1458
4
1
1083.13
6
1
0.46
1
0.6999
4
2
0.2111
4
1
1084.53
6
1
0.47
1
0.6999
4
2
0.2923
4
1
1086.26
6
1
0.47
1
0.6999
4
2
0.388
4
1
1088.28
6
1
0.48
1
0.6999
4
2
0.473
4
1
1090.04
6
1
0.48
1
0.9979
4
2
0
2
1
1112.28
6
1
0.54
1
0.9979
4
2
0.0965
3
1
1114.16
6
1
0.54
1
0.9979
4
2
0.17
4
1
1115.57
6
1
0.55
1
0.9979
4
2
0.223
4
1
1116.58
6
1
0.55
1
0.9979
4
2
0.2959
4
1
1117.95
6
1
0.55
1
0.9979
4
2
0.3842
4
1
1119.59
6
1
0.56
1
0.9979
4
2
0.4814
4
1
1121.36
6
1
0.56
1
1.1998
5
2
0
2
1
1133.46
6
1
0.59
1
1.1998
5
2
0.0993
3
1
1135.2
6
1
0.6
1
1.1998
5
2
0.1399
4
1
1135.91
6
1
0.6
1
1.1998
5
2
0.2131
4
1
1137.17
6
1
0.6
1
1.1998
5
2
0.2934
4
1
1138.54
6
1
0.61
1
1.1998
5
2
0.3917
4
1
1140.19
6
1
0.61
1
1.1998
5
2
0.4939
4
1
1141.87
6
1
0.62
6
5
1
1
1
2
1
Principal objective of the work
VVD
TRC
11/7/2013
1
Molar enthalpy of solution, kJ/mol
microcalorimetry
Liquid
Difference with the reference state, X-X(REF)
Pure solute at the same temperature and pressure
Crystal
1
2
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
3
Molality, mol/kg
5
Liquid
0
1
1
Solvent: Molality, mol/kg
2
Liquid
1
0
2
1
11.34
4
1
0.33
1
0.2
4
1
10.34
4
1
0.3
1
0.4992
4
1
9.74
3
1
0.28
1
0.6998
4
1
9.58
3
1
0.28
1
1.0001
5
1
9.49
3
1
0.28
1
1.1998
5
1
9.43
3
1
0.27
7
5
1
1
1
2
1
Principal objective of the work
TEL
TRC
12/17/2009
1
Mass density, kg/m3
VIBTUB:UFactor:6
Liquid
Direct value, X
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Temperature, K
Liquid
298.15
5
1
Molality, mol/kg
2
Liquid
2
Molality, mol/kg
5
Liquid
1
0.2
4
2
0
2
1
1021.93
6
1
0.32
1
0.2
4
2
0.103
4
1
1026.27
6
1
0.33
1
0.2
4
2
0.1578
4
1
1028.55
6
1
0.33
1
0.2
4
2
0.2107
4
1
1030.72
6
1
0.34
1
0.2
4
2
0.2899
4
1
1033.95
6
1
0.35
1
0.2
4
2
0.3857
4
1
1037.79
6
1
0.36
1
0.2
4
2
0.5093
4
1
1042.66
6
1
0.37
1
0.4999
4
2
0
2
1
1057.31
7
1
0.403
1
0.4999
4
2
0.107
3
1
1061.54
6
1
0.41
1
0.4999
4
2
0.1753
4
1
1064.19
6
1
0.42
1
0.4999
4
2
0.2411
4
1
1066.73
6
1
0.43
1
0.4999
4
2
0.303
4
1
1069.08
6
1
0.43
1
0.4999
4
2
0.3828
4
1
1072.08
6
1
0.44
1
0.4999
4
2
0.4738
4
1
1075.46
6
1
0.45
1
0.6999
4
2
0
2
1
1079.93
6
1
0.46
1
0.6999
4
2
0.0992
3
1
1083.68
6
1
0.47
1
0.6999
4
2
0.1546
4
1
1085.75
6
1
0.47
1
0.6999
4
2
0.2054
4
1
1087.64
6
1
0.48
1
0.6999
4
2
0.2991
4
1
1091.07
6
1
0.49
1
0.6999
4
2
0.4107
4
1
1095.08
6
1
0.5
1
0.6999
4
2
0.4836
4
1
1097.68
6
1
0.5
1
0.9999
4
2
0
2
1
1112.48
6
1
0.54
1
0.9999
4
2
0.1089
4
1
1116.35
6
1
0.55
1
0.9999
4
2
0.1565
4
1
1118.01
6
1
0.55
1
0.9999
4
2
0.2525
4
1
1121.33
6
1
0.56
1
0.9999
4
2
0.3154
4
1
1123.48
6
1
0.57
1
0.9999
4
2
0.3963
4
1
1126.22
6
1
0.58
1
0.9999
4
2
0.5352
4
1
1130.83
6
1
0.59
1
1.2001
5
2
0
2
1
1133.45
6
1
0.59
1
1.2001
5
2
0.1024
4
1
1136.92
6
1
0.6
1
1.2001
5
2
0.1682
4
1
1139.13
6
1
0.61
1
1.2001
5
2
0.2174
4
1
1140.76
6
1
0.61
1
1.2001
5
2
0.3102
4
1
1143.79
6
1
0.62
1
1.2001
5
2
0.4086
4
1
1146.96
6
1
0.63
1
1.2001
5
2
0.476
4
1
1149.11
6
1
0.64