Densities of aqueous MgCl2(aq), CaCl2(aq), KI(aq), NaCl(aq), KCl(aq),
AlCl3(aq) and (0.964 NaCl + 0.136 KCl)(aq) at temperatures between (283.15
and 473.15) K, pressures up to 68.5 MPa and molalities up to 6 mol·kg-1
Saif Al Ghafri, Geoffrey C. Maitland and J. P. Martin Trusler*
Qatar Carbonates and Carbon Storage Research Centre (QCCSRC), Department of Chemical
Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ,
United Kingdom.
*
To whom correspondence should be addressed. E-mail: [email protected]
Supplementary Data
Table S1: Available literature sources for the densities of single-salts aqueous solutions with
uncertainties δρ, temperatures T, pressures p and molalities b.
Ref
Year
Method
δρ /( kg ⋅ m −3 )
T/K
p/MPa
b/mol·kg-1
0.10 to 60
0.10
0.10
0.10
≈7.0 & 40.0
0.60
0.10
0.10
0.1 to 38.92
0.60
2.03
0.10 to 40.71
0.10
0.10
0.10
0.10
0.10
0.10
0.10
2.03
0.184 to 6.007
3.000
0.501 to 2.498
0.022 to 7.878
0.242 to 6.150
1.459 to 5.541
0.300 to 2.000
0.987 to 9.887
0.0497 to 6.424
0.030 to 0.985
0.504 to 6.439
0.051 to 4.980
0.050 to 6.000
0.333 to 7.449
0.460 to 5.050
0.0334 to 7.4
0.050 to 6.464
0.010 to 0.984
0.01256 to 0.328
0.05 to 1.00
10.17 to 30.58
0.6
0.015 to 3.045
0.442 to 5.189
CaCl2(aq)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2005
2004
2003
1997
1995
1995
1995
1994
1989
1987
1986
1985
1984
1983
1983
1982
1981
1977
1974
1967
CVP
VTD
VTD
VTD
VTD
VTD
CTM
VTD
VTD
VTD
VTD
VTD
WD
VTD
OTTD
VTD
FD
VTD
FD
0.03
003
0.1
0.05
0.01
0.1
0.05
0.005
0.51
0.005
0.01
0.284
0.01
0.003
0.003
298.15 to 398.15
278.15 to 308.15
283.15 to 348.15
298.15
298.04 to 522.95
298.15 to 373.15
298.15
291.55 to 343.14
323.15 to 597.45
298.15 to 373.15
323.15 to 473.15
298.15
298.15 to 328.15
278.15 to 308.15
298.15 to 318.15
298.15
298.15
298.15
298.15
348.15 to 473.15
MgCl2(aq)
21
6
1997
1995
VTD
VTD
0.01
369.36 to 627.15
298.15 to 373.15
Ref
Year
Method
δρ /( kg ⋅ m −3 )
T/K
p/MPa
b/mol·kg-1
10
22
12
13
23
15
24
17
25
26
18
19
27
20
1987
1986
1985
1984
1984
1983
1982
1981
1980
1980
1977
1974
1973
1967
VTD
VTD
VTD
WD
SSP
OTTD
VTD
FD
0.005
0.005
0.005
0.01
0.13
0.233
0.003
0.01
VFD
VTD
FD
MFD
0.002
0.003
0.003
0.003
297.19 to 371.82
308.15 to 368.15
298.15
288.15 to 328.15
298.15
303.15 to 318.15
278.15 to 318.15
298.15
298.15
273.15 to 308.15
298.15
298.15
273.15 to 323.15
348.15 to 473.15
0.6
0.1
0.10 to 40.55
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
2.03
0.108 to 0.528
0.350 to 4.608
0.0312to 2.952
0.050 to 5.000
0.303 to 5.567
0.54 to 3.31
0.046 to 5.426
0.482 to 5.028
0.025 to 5.674
0.005 to 1.475
0.048 to 0.971
0.004 to 0.341
0.009 to 0.994
0.1 to 1.00
0.35
0.1
0.1
0.6
0.1
2.027
0.1
0.015 to 7.501
0.100 to 0.999
0.050 to 0.100
0.010 to 1.964
0.049 to 0.999
0.10 to 10
0.220 to 0.845
0.1
0.1
6.95-30.23
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.5 to 10.22
0.1 to 28.25
0.1
0.1
0.1
0.1
2
0.1
0.05 to 6
0.05 to 1.25
5.972
0.100 to 4.000
1.503
1.000 to 3.000
0.101 to 1.027
0-1
0 to 4
0.501 to 4.999
0.200 to 1.000
6.100 to 6.302
6.115 to 6.170
0 to 4.5
0.009 to 6.014
0 to 1
0.1 to 1
0.115 to 2.329
3.001
0.022 to 6.024
0.087 to 4.290
0.089 to 0.346
0.108 to 5.948
0 to 4.5
0.500
KI(aq)
28
29
30
31
18
32
33
2008
2005
1993
1992
1977
1968
1968
VTD
VTD
FVTD
FVTD
VTD
0.01
0.003
OP
278.15 to 368.15
278.15 to 338.15
296.02 to 321.1
297.19 to 373.17
298.15
348.15 to 473.15
278.15 to 338.15
NaCl(aq)
34
35
36
37
38
39
40
41
42
3
43
44
45
46
47
48
49
50
51
52
53
54
6
55
30
2006
2006
2006
2006
2006
2005
2005
2004
2003
2003
2003
2003
2003
2002
2001
2000
1999
1997
1996
1996
1996
1995
1995
1994
1993
VTD
BC
VTD
VTD
PC
VTD
VTD
VTD
VTD
VTD
VTD
VTD
DB
CTM
VTD
VTD
SVFD
FVTD
VTD
VTD
VTD
VTD
VTD
VTD
0.5
0.01
0.05
0.005
0.01
0.1
0.01
0.05
0.1
0.003
0.01
0.5
0.05
0.01
288.15 to 323.15
298.15
373.56 to 622.61
293.15 to 303.15
298.15 to 323.15
298.15
318.15
298.15
293.15 to 313.15
283.15 to 353.15
298.15
298.15 to 313.15
288.15
298.15
253-293
298.15
277.15 to 343.15
373.15 to 573.34
298.13 to 623.44
298.15
298.15
298.15 to 328.15
297.05 to 371.82
298.15 to 413.15
296.02 to 346.1
Ref
Year
Method
56
57
58
59
60
61
62
63
64.
22
12
65
66
14
15
67
68
24
69
70
71
72
26
73
74
75
76
77
33
78
79
80
81
1993
1991
1991
1990
1988
1988
1988
1988
1987
1986
1985
1985
1984
1983
1983
1982
1982
1982
1981
1981
1981
1980
1980
1978
1977
1972
1970
1969
1968
1968
1968
1966
1966
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
FVTD
SVTD
OTTD
Dil
FD
FVTD
PV
VTD
FD
VTD
FVTD
VFD
MFD
MFD
AB
OP
Dil
Dil
Dil
PV
T/K
p/MPa
b/mol·kg-1
623.09 to 623.2
604.41-716.73
393.4 to 673.2
298.23 to 308.12
298.15
298.15
298.15
321.57 to 549.75
298.15
308.15 to 368.15
298.15
298.15
298.15
278.15 to 308.15
298.15 to 318.15
348.15 to 473.15
298.15
278.15 to 318.15
627.38
298.15
278.15 to 318.15
288.15 to 318.15
273.15 to 308.15
293.15
298.15
323.15
273.15 to 328.15
298.15
278.15 to 338.15
278.25 to 318.21
298.15 to 423.15
298.15 to 448.15
348.15 to 473.15
15.24 to 16.8
18.36-33.02
1.00 to 40.00
0.1
0.1
0.1
0.1
0.1 to 40.16
0.1
0.1
1.01 to 40.78
0.1
0.1
0.1
0.1
2.03
0.1
0.1
20
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
2.03
0.25 to 3
0.003-3.096
0.051 to 3.09
0.084 to 6.039
0.295 to 1.001
0.5 to 4
0.5 to 4.5
0.003 to 5.046
0.020 to 3.265
0.217 to 6.198
0.058 to 4.991
1.000 to 4.000
0.012 to 1.844
0.400 to 6.200
0 to 6.1
0.005 to 4.393
0.2788 to 5.105
0.371 to 5.997
0.1 to 4
0.011 to 5.325
0.787 to 5.952
0.062 to 5.924
0.010 to 1.500
0.002 to 4.278
0.010 to 1.000
0.005 to 0.984
0.001 to 0.965
1.023 to 5.604
0.211 to 1.007
4
0.010 to 3.602
0.1 to 2.5
0.1 to 1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.10 to 40.64
0.1
4.428 to 5.279
0.250 to 1.110
0.5 to 3.807
0.012 to 0.967
0.100 to 1.000
0.021 to 4.818
0.001-1.088
0.5 to 4.5
0.500 to 4.000
0.500 to 4.000
0.5 to 4.5
0.131 to 0.477
0.5 to 4.5
0.059 to 3.012
0 to 4.500
δρ /( kg ⋅ m −3 )
0.003
0.003
0.01
0.06
0.003
0.01
0.02
0.02
KCl(aq)
82
83
3
84
49
52
85
86
87
88
62
60
89
12
15
2008
2007
2003
2001
1999
1996
1990
1989
1989
1989
1988
1988
1986
1985
1983
DBM
VTD
VD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
VTD
OTTD
0.05
0.1
0.05
0.01
0.005
0.003
0.003
0.003
0.003
0.005
0.003
0.01
288.15 to 308.15
298.15
278.15 to 353.15
293.15 to 303.15
277.15 to 343.15
298.15
278.15 to 368.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15 to 318.15
Ref
Year
Method
δρ /( kg ⋅ m −3 )
T/K
p/MPa
b/mol·kg-1
90
91
27
77
79
33
81
92
93
94
95
96
97
98
99
100
101
102
1977
1975
1973
1969
1968
1968
1966
1962
1952
1941
1939
1937
1934
1933
1933
1927
1926
1912
VTD
OP
MFD
0.003
0.02
0.0003
LP
Dil
PV
0.01
298.15
298.15
323.15
298.15
298.15 to 423.15
278.15 to 338.15
348.15 to 473.15
308.15 to 318.15
298.15
278.15 to 298.15
298.15
298.15
298.15
298.15
298.15
313.15-353.15
298.15
293.15
0.1
0.1
0.1
0.1
0.1
0.1
2.03
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.100 to 1.005
0.042 to 3.420
0.029 to 1.003
0.120 to 0.965
0.100 to 3.608
0.046 to 0.200
0.1 to 1
0.045 to 4.632
0.002 to 0.145
0.005 to 0.500
0.412 to 1.025
0 to 0.799
0.134 to 0.537
0.123 to 0.789
0 to 0.049
0.443-5.229
0.1 to 4
0.249
0.10
0.60
2.03
0.10
0.10
0.10
0.10
2.03
0.10
0.10
0.100 to 3.629
0.027 to 1.993
0.303 to 2.718
0.050 to 2.500
0.240 to 2.218
0.200 to 0.996
0.004 to 0.312
0.100 to 1.000
0 to 0.500
0.050 to 0.264
2.00
0.10 to 20.00
0.10
0.10
0.10
0.10
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.500 to 4.500
0.009 to 1.586
0.050 to 1.500
0.100 to 0.962
0.004 to 0.387
0.191 to 0.830
0.100 to 1.000
0.183 to 0.651
0 to 0.500
0 to 1.043
0.049
0.010 to 0.285
0.005 to 0.845
0.005 to 1.040
MFD
Dil
Pyc
Pyc
PI
0.01
0.01
Pyc
SrCl2(aq)
103
10
104
13
105
90
106
20
107
108
1997
1987
1986
1984
1982
1977
1974
1967
1949
1934
VTD
VTD
Dil
WTD
Pyn
VTD
FD
0.005
0.22 to 0.51
0.01
0.03
0.003
0.003
Pyn
Pyn
298.20
297.20
323.20 to 473.20
288.20 to 328.20
298.20
298.20
298.20
348.20 to 473.20
298.20
298.15
BaCl2(aq)
55
109
13
90
106
33
20
110
111
112
108
113
114
115
1994
1991
1984
1977
1974
1968
1967
1966
1952
1941
1934
1932
1930
1930
VTD
VTD
WTD
VTD
FD
OP
PV
Dil
Pyn
Pyn
OP
OP
0.01 to 0.04
0.005
0.01
0.003
0.01
0.01
298.20 to 413.20
288.20 to 413.20
288.20 to 328.20
298.15
298.15
278.20 to 338.20
348.20 to 473.20
298.20
298.20
298.20
298.20
293.20
298.20
298.20
Ref
Year
Method
T/K
p/MPa
b/mol·kg-1
289.85 to 607.71
283.15 to 343.15
288.20 to 318.20
603.32 to 658.07
290.20 to 343.10
298.20
298.20
0.96 to 30.55
0.10
0.10
15.16 to 24.49
0.10
0.10
0.10
0.129 to 15.498
1.019 to 9.887
1.132 to 12.186
0 to 0.017
2.630 to 19.606
0.108 to 1.088
0.954 to 5.617
0.10
0.10
0.10
0.10
0.10
0.10
0.10
1.015 to 9.967
0.002 to 0.025
0.052 to 14.060
1.899 to 18.270
0.016 to 0.099
7.903 to 20.075
0.040 to 0.415
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
15.2 to 24.75
18.4 to 38.04
0.10
0.76 to 32.58
0.10
0.10
0.10
0.10
0.10 to 40.06
0.10
0.10
0.10
0.10
0.10
0.10
4.165
4.165
0 to 1
0.011 to 0.047
0 to 0.046
0.501 to 7.993
0 to 0.046
0.023 to 8.299
0.126 to 4.924
0 to 0.019
0.005 to 3.038
0.500 to 4
0.051 to 3.031
0.500 to 4
0.095 to 0.410
0.500 to 4
1 to 8.343
0.050 to 4.972
0.050 to 8
0.019 to 0.078
0.101 to 1
0.634 to 4.499
0.064 to 0.508
0.002 to 0.015
δρ /( kg ⋅ m −3 )
LiCl (aq)
116
3
117
118
8
90
77
2006
2003
2003
1997
1994
1977
1969
PI
VTD
AB
0.06
0.1
0.1
VTD
VTD
0.1
0.003
LiBr(aq)
3
119
120
8
121
122
123
2003
2002
2002
1994
1987
1983
1969
VTD
VTD
Pyn
VTD
VTD
0.1
0.1
0.16
0.1
0.001
FM
283.15 to 343.15
278.20 to 293.20
299.05 to 326.15
291.83 to 373.26
298.20
288.20 to 353.20
298.20
NaBr(aq)
124
125
126
127
128
3
128
120
129
118
130
88
131
87
60
61
132
12
13
133
90
91
123
134
2007
2007
2006
2005
2003
2003
2003
2002
2000
1997
1991
1989
1989
1989
1988
1988
1986
1985
1984
1981
1977
1975
1969
1968
VTD
VTD
VTD
Pyn
Pyn
VTD
Pyn
Pyn
VTD
VTD
VTD
VTD
VTD
VTD
VTD
SVTD
VTD
WTD
VTD
VTD
OP
FM
0.01
0.01
0.003
0.05
0.05
0.1
0.05
0.15
0.003
1
0.003
0.005
0.003
1
0.01
0.5
0.003
0.02
0.002
288.20 to 298.20
288.20 to 298.20
298.15
308.20
298.20
283.15 to 343.14
298.20
294.95 to 325.10
373.16 to 522.11
603.32 to 658.07
604.40 to 725.52
298.20
321.63 to 549.80
298.20
298.15
298.20
298.15
298.15
288.20 to 328.20
303.20 to 323.20
298.20
298.20
298.20
373.20 to 1073.20
KBr(aq)
Ref
Year
Method
83
135
29
3
120
136
30
88
60
65
137
66
13
90
123
32
138
33
139
140
141
98
113
2007
2006
2005
2003
2002
1997
1993
1989
1988
1985
1985
1984
1984
1977
1969
1968
1968
1968
1940
1937
1934
1933
1932
VTD
PI
VTD
VTD
Pyn
Pyn
FD
VTD
VTD
VTD
TP
FD
WTD
VTD
FM
Pyn
Pyn
OP
T/K
p/MPa
b/mol·kg-1
298.20
298.15 to 348.15
278.20 to 338.20
283.16 to 343.13
299.55 to 325.05
298.15
296.02 to 346.1
298.15
298.15
298.20
298.20
298.20
288.20 to 328.20
298.20
298.20
348.20 to 473.20
298.20
278.20 to 338.20
273.15
298.20
273.20 to 298.20
298.20
293.20
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
1.040 to 4.720
0.238 to 2.231
0.100 to 1.000
0.500 to 4.989
0.009 to 5.762
0.003 to 0.055
0.500
0.500 to 4.000
0.084 to 0.353
1.000 to 4.000
0.002 to 0.195
0.007 to 0.038
0.050 to 4.000
0.102 to 1.000
0.048 to 0.586
0.100 to 1.000
0.195 to 0.829
0.237 to 0.953
0.001 to 2.857
0.040 to 0.930
0.001 to 4.375
0.001 to 4.373
0.010 to 0.293
0.10
0.10
0.400 to 2.595
3.053 to 5.264
0.10
0.010 to 4.468
0.10
0.10
0.10
0.015 to 0.045
0.025 to 0.035
0 to 0.030
10 to 30.40
0.10
0.60
0.10
0.10
0.10
0.10
0.10
0.010 to 0.899
0.122 to 0.835
0.010 to 0.439
0.014 to 0.926
0.101 to 0.797
0.010 to 0.804
0.179 to 0.592
0.871 to 0.989
δρ /( kg ⋅ m −3 )
0.06%
0.1
0.14
0.01
0.003
0.005
0.003
0.01
0.003
0.002
0.01
0.01
SM
CaBr2(aq)
132
142
1986
1954
SVTD
Pyn
0.2
298.20
213.20 to 298.20
BaBr2(aq)
113
1932
293.20
LiF(aq)
143
123
112
1984
1969
1941
VTD
FM
OP
0.002
298.20
298.20
298.20
NaF(aq)
144
145
31
143
18
27
123
146
1997
1994
1992
1984
1977
1973
1969
1937
VTD
VTD
VTD
VTD
VTD
MFD
FM
Pyn
0.02
0.003
0.0003
0.002
298.20
298.20
297.19 to 371.82
298.15
298.20
273.20
298.20
273.20 to 308.20
Ref
Year
Method
T/K
p/MPa
b/mol·kg-1
298.20
298.20
297.19 to 371.82
298.20
298.20
298.20
323.20 to 473.20
10.00 to 30.40
0.10
0.60
0.10
0.10
0.10
2.03
0.010 to 2.999
0.098 to 0.803
0.097 to 2.100
0.052 to 8.885
0.050 to 1.106
0.050 to 0.557
0.100 to 1.000
0.10 to 58.63
0.10 to 31.20
0.10
0.111 to 4.881
0.091 to 3.089
1.314 to 2.766
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0 to 1
0.025 to 0.266
0.050
0.025 to 0.194
0.020 to 0.083
0.101 to 0.995
0.001 to 0.100
0.053 to 0.486
0.007 to 0.060
0.044 to 0.203
0.001 to 0.168
0.10
4.438 to 4.585
0.10
0.10
0.10
0.10
0.214 to 3.090
0.406 to 3.199
1.330
0.100 to 3.094
0.10
0.10
0.10
0.10
9.87 to 30.70
0.10
0.60
0.10
0.499 to 0.997
0.092 to 0.500
0.100 to 1.848
0.500 to 2.254
0.005 to 1.003
0 to 0.197
0.010 to 1.532
0.101 to 2.068
δρ /( kg ⋅ m −3 )
KF(aq)
144
145
31
143
90
123
32
1997
1994
1992
1984
1977
1969
1968
VTD
VTD
VTD
VTD
VTD
FM
Pyn
0.02
0.003
0.002
LiI(aq)
147
148
149
2006
2004
2004
PI
PI
VTD
0.03
0.76
0.4
298.15 to 398.15
298.2 to 348.20
303.2 to 343.20
NaI(aq)
150
151
152
137
133
90
153
123
154
93
155
2005
1989
1988
1985
1981
1977
1969
1969
1966
1952
1933
VTD
LP
UV
TP
VTD
VTD
FM
Pyn
MFD
0.01
0.1
0.1
0.5
0.003
0.002
0.2
298.15
299.20
293.20 to 303.20
298.20
303.20 to 323.20
298.20
373.20 to 1073.20
298.20
298.20
298.20
298.20
CaI2(aq)
142
1954
Pyn
0.2
213.20 to 298.20
Li2SO4(aq)
156
157
78
158
2007
1995
1968
1937
OTTD
VTD
Dil
Pyn
0.1
0.01
0.03
283.20 to 298.20
283.15 to 338.15
278.27 to 318.27
298.20
Na2SO4(aq)
159
160
161
3
162
163
31
22
2008
2008
2007
2003
1997
1994
1992
1986
VTD
VTD
VTD
VTD
VTD
OTTD
VTD
VTD
0.003
0.003
0.1
0.1
0.005
0.002
0.02
288.15 to 318.15
298.20
283.20 to 298.20
283.16 to 343.14
298.20 to 572.67
288.20 to 308.20
297.19 to 371.82
308.20 to 368.20
Ref
Year
Method
δρ /( kg ⋅ m −3 )
T/K
p/MPa
b/mol·kg-1
164
165
166
13
167
24
168
26
169
27
32
78
79
110
80
158
170
171
1986
1985
1985
1984
1984
1982
1982
1980
1977
1973
1968
1968
1968
1966
1966
1937
1926
1922
Dil
PVFD
0.1
WTD
VTD
VTD
VTD
VTD
VTD
MFD
Pyn
Dil
LP
Dil
LP
Pyn
PVFD
Pyn
0.01
0.01
0.003
0.005
0.02
0.003
0.0003
294.52 to 475.78
298.20
304.62 to 474.68
288.20 to 328.20
313.20
288.15 to 318.15
288.20 to 308.20
273.20 to 308.20
298.20
273.20 to 323.20
348.20 to 473.20
278.27 to 318.41
298.20 to 423.20
298.20
298.20 to 448.20
298.20
273.20 to 313.20
298.20
9.59 to 10.24
0.10
0.10 to 20
0.10
0.10
0.10
0.10
0.10
0.10
0.10
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.058 to 0.330
0.321 to 0.899
0.050 to 2.629
0.050 to 1.500
0.035 to 6.548
0.052 to 1.625
0.001 to 0.053
0 to 0.720
0.100 to 1
0.002 to 1.005
0.050 to 1
1.333
0.033 to 1.203
0.192 to 0.752
0.010 to 0.150
0 to 1.964
0.339 to 3.370
0.063 to 1.963
0.10
0.10
9.88 to 30.66
0.60
0.10
0.10
0.10
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.043 to 0.711
0.698 to 0.910
0.005 to 0.505
0.010 to 0.402
0.100 to 0.650
0.100 to 0.501
0.002 to 0.707
0.050 to 0.500
0.203 to 0.470
0.001 to 0.512
0.015 to 0.325
0 to 1.126
0 to 0.689
0 to 0.638
0.044 to 0.691
0.10
0.10
0.10
2.00
0.10
2.11 to 10.41
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.050 to 0.500
0.193 to 3.044
0.001 to 0.198
0 to 2.186
0.001 to 0.049
0.072 to 0.250
0.207 to 2.838
0.244 to 0.693
0.038 to 2.399
0.001 to 1.483
0.054 to 1.001
0.002 to 0.890
0.025 to 0.903
0.003
0.01
0.01
0.01
K2SO4(aq)
161
172
162
31
85
90
27
32
110
173
140
96
158
174
171
2007
2002
1997
1992
1990
1977
1973
1968
1966
1940
1937
1937
1937
1932
1922
VTD
VTD
VTD
VTD
VTD
VTD
MFD
PV
Dil
0.1
0.1
0.003
0.0003
0.02
0.01
SM
0.005
0.02
Pyn
Pyn
Pyn
283.20 to 298.20
298.15 to 318.15
298.20 to 572.75
297.19 to 371.82
278.20 to 368.20
298.20
273.20 to 323.20
348.20 to 473.20
298.20
273.20 to 298.20
298.20
298.20
298.20
298.20
298.20
MgSO4(aq)
160
156
163
175
168
164
22
165
24
26
90
27
79
2008
2007
1994
1986
1986
1986
1986
1985
1982
1980
1977
1973
1968
VTD
OTTD
OTTD
0.003
0.1
0.005
VTD
Dil
PVFD
PVFD
VTD
VTD
VTD
MFD
LP
0.005
0.04 to 0.1
0.02
0.003
0.012
0.003
0.0003
298.20
283.20 to 298.20
288.20 to 308.20
348.20 to 473.20
288.20 to 308.20
293.84 to 475.77
308.20 to 368.20
298.20
278.15 to 318.15
273.20 to 308.20
298.20
273.20 to 323.20
298.20 to 423.20
Ref
Year
Method
δρ /( kg ⋅ m −3 )
T/K
p/MPa
b/mol·kg-1
80
1966
LP
0.1
298.20 to 448.20
0.10
0.010 to 0.292
CaSO4(aq)
176
1977
VTD
0.003
298.20
0.10
0.001 to 0.007
177
1956
293.20 to 323.20
0.10
0.002 to 0.015
178
1941
TP
273.20 to 298.20
0.10
0.002 to 0.011
PVFD-Picker Vibrating Flow Densimeter, FM-Float Method, AB-Analytical Balance, SM-Sinker Method, TPTare Pycnometers, WTD-Weld Type Densitometer, PV-Pressure Vessel, PI-Piezometer, VTD-vibrating Tube
densimeter, Cal.-calculation, MFD-magnetic float densimeter, UV- Ubbelohde-type viscometer, FVTD-flow
vibrating tube densimeter, OTTD-Oscillating tube-type densitometer, LP-Lipkin Pycnometers, PycPycnometers, Dil-Dilatometer, DBM-Density Bottle Method, OP-Ostwald Pycnometers, ICT- International
Critical Tables, TP-Two arm pycnometers, FD-Flow densimeter, SVTD-Sodev Vibrating Tube Densimeter,
SVFD-Sodev Vibrating Flow Densimeter, CTM-Capillary Tube Method, CVP-Constant volume piezometer,
SSP-single-stem pycnometers, BP-bi-capillary pycnometers, DB-Densimetric Balance, AB-Analytical Balance.
Table S2: Available literature sources for the densities of mixed-salts aqueous solutions with
uncertainties δρ, temperatures T, pressures p and molalities bi.
Ref
Year
Method
δρ /(kg ⋅ m −3 )
p/MPa
b1/mol·kg-1
b2/mol·kg-1
298.15
0.1
0.012 to 4.255
0.036 to 1.426
298.15
0.1
0.370 to 0.683
0.510 to 0.493
T/K
(NaCl + KCl)(aq)
52
1996
VTD
0.05
179
1996
SSP
85
1990
SVFD
0.003
278.15 to 368.15
0.1
0.000 t0 1.763
1.950 to 0.187
62
1988
VTD
0.003
298.15
0.1
0.024 to 4.109
0.477 to 0.392
180
1986
VFTD
198.15
0.1
0.000 to 1.205
1.500 to 0.296
181
1977
198.15
0.1
0.167 to 2.500
0.833 to 2.500
182
1969
298.15 to 423.15
0.1
0.477 to 3.245
0.224 to 0.361
0.10
0.040 to 0.368
0.008 to 0.011
(CaCl2 + CaSO4)(aq)
183
2007
VTD
0.05
308.20
(KCl + K2SO4)(aq)
85
1990
VTD
278.20 to 368.20
0.10
0 to 1.950
0 to 0.650
180
1986
PVFD
298.20
0.10
0 to 1.500
0 to 0.500
0.10
0.614 to 1.904
0.635 to 1.230
(NaCl + SrCl2)(aq)
184
2000
298.20
(NaCl- Na2SO4)(aq)
85
1990
VTD
278.20 to 368.20
0.10
0 to 1.950
0 to 0.650
180
1986
PVFD
298.20
0.10
0 to 1.500
0 to 0.500
182
1969
298.20 to 423.20
0.10
0.551 to 3.422
0.012 to 0.264
80
1966
298.20 to 448.20
0.10
0.100 to 2.500
0.010 to 0.150
298.20 to 423.20
0.10
0.551 to 3.422
0.012 to 0.264
298.20
0.10
0.100 to 2.500
0.010 to 0.150
296.02 to 346.10
0.10
0.100 to 0.400
0.100 to 0.400
298.20
0.10
0 to 4
0 to 4
LP
0.1
(NaCl + MgSO4)(aq)
182
1969
80
1966
LP
0.1
(NaCl + KBr)(aq)
30
1993
FVTD
65
1985
VTD
0.003
Ref
Year
181
1977
Method
δρ /(kg ⋅ m −3 )
T/K
p/MPa
b1/mol·kg-1
b2/mol·kg-1
298.20
0.10
0.500 to 2.500
0.500 to 2.500
(NaCl- K2SO4)(aq)
85
1990
VTD
278.20 to 368.20
0.10
0 to 1.950
0 to 0.650
180
1986
PVFD
298.20
0.10
0 to 1.500
0 to 0.500
0.10
0 to 4.200
0.015 to 0.053
2
0.500 to 4.500
0.05 to 4.050
(NaCl + CaSO4)(aq)
183
2007
0.05
308.20
(NaCl + BaCl2)(aq)
55
1994
VTD
0.01 to 0.04
298.2 to 413.2
(Na2SO4 + K2SO4)(aq)
85
1990
VTD
278.20 to 368.20
0.10
0 to 1.950
0 to 0.650
180
1986
PVFD
298.20
0.10
0 to 1.500
0 to 0.500
0.10
0 to 3.087
0 to 5.223
0.10
0 to 4.012
0 to 4.012
0.10
0.057 to 3.854
0.031 to 1.378
(Li2SO4 + MgSO4)(aq)
185
2008
DBM
0.0002
348.20
(KCl + NaBr)(aq)
87
1989
VTD
0.003
298.20
(KCl + MgCl2)(aq)
86
1989
VTD
0.003
298.20
PVFD-Picker Vibrating Flow Densimeter, FM-Float Method, AB-Analytical Balance, SM-Sinker Method, TPTare Pycnometers, WTD-Weld Type Densitometer, PV-Pressure Vessel, PI-Piezometer, VTD-vibrating Tube
densimeter, Cal.-calculation, MFD-magnetic float densimeter, UV- Ubbelohde-type viscometer, FVTD-flow
vibrating tube densimeter, OTTD-Oscillating tube-type densitometer, LP-Lipkin Pycnometers, PycPycnometers, Dil-Dilatometer, DBM-Density Bottle Method, OP-Ostwald Pycnometers, ICT- International
Critical Tables, TP-Two arm pycnometers, FD-Flow densimeter, SVTD-Sodev Vibrating Tube Densimeter,
SVFD-Sodev Vibrating Flow Densimeter, CTM-Capillary Tube Method, CVP-Constant volume piezometer,
SSP-single-stem pycnometers, BP-bi-capillary pycnometers, DB-Densimetric Balance, AB-Analytical
Balance.
Table S3: Deviations of literature data for densities ρ of CaCl2(aq), MgCl2(aq), NaCl(aq),
KCl(aq), and KI(aq) from the model developed in this work.
Ref
Tmin
K
Tmax
K
pmin
MPa
pmax
MPa
bmin
bmax
102∆AAD
-1
mol ⋅ kg mol ⋅ kg-1
102∆Bias
102∆MAD
N
CaCl2(aq)
1
5
9
10
20
1
5
9
1
6
8
9
13
1
4
7
8
12
13
16
17
18
19
323.15
398.15
323.18
472.95
323.16
450.13
321.90
371.96
348.15
473.15
298.15
298.15
≈298.15 ≈ 298.15
298.15
298.15
323.15
398.15
321.97
371.82
303.07
343.06
323.16
323.16
288.15
328.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
3.78
≈7.0
1.00
0.60
2.03
5.03
≈7.0
1.00
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
60
40.0
40.71
0.60
2.03
59.94
40.0
40.71
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.184
0.242
0.0497
0.030
0.05
0.184
0.242
0.050
0.184
1.456
0.987
0.050
0.05
0.184
0.022
0.300
3.821
0.101
0.050
0.033
0.050
0.010
0.013
6.007
6.150
6.424
0.985
1.00
6.007
6.150
4.980
6.007
5.541
5.902
6.424
6.00
6.007
7.878
2.000
5.902
4.980
6.000
6.286
6.464
0.984
0.328
0.063
0.056
0.066
0.053
0.009
0.068
0.039
0.020
0.120
0.052
0.051
0.041
0.042
0.103
0.069
0.103
0.080
0.055
0.040
0.081
0.095
0.007
0.007
0.042
0.042
-0.063
-0.053
0.004
0.038
0.029
-0.004
0.114
-0.052
0.042
0.000
-0.005
0.102
0.066
-0.003
0.080
0.051
-0.007
0.069
0.092
-0.003
-0.007
0.327
0.224
0.267
0.216
0.040
0.273
0.100
0.090
0.369
0.112
0.124
0.102
0.159
0.340
0.216
0.202
0.107
0.213
0.157
0.253
0.210
0.011
0.013
168
86
176
25
30
41
24
31
21
17
54
17
48
6
97
4
5
7
8
17
14
12
8
1.153
5.189
0.528
1.00
2.952
4.608
5.000
3.31
5.272
0.974
1.018
2.952
5.781
5.028
5.674
1.475
0.971
0.027
0.088
0.013
0.039
0.033
0.013
0.157
0.021
0.011
0.010
0.007
0.015
0.019
0.015
0.018
0.011
0.017
0.024
0.084
-0.013
-0.032
-0.033
-0.006
-0.157
0.011
0.001
-0.009
-0.002
-0.010
-0.018
0.013
0.012
-0.008
-0.017
0.118
0.204
0.021
0.112
0.059
0.053
0.350
0.051
0.032
0.025
0.028
0.022
0.041
0.041
0.049
0.020
0.021
52
25
20
24
26
59
36
24
65
54
41
7
19
11
10
27
10
MgCl2(aq)
21
6
10
20
12
22
13
15
24
26
27
12
23
17
25
26
18
369.36
297.05
297.19
348.15
298.15
308.15
288.15
303.15
278.15
273.15
273.15
298.15
298.15
298.15
298.15
298.15
298.15
450.07
371.82
371.82
473.15
298.15
368.15
328.15
318.15
318.15
308.15
323.15
298.15
298.15
298.15
298.15
298.15
298.15
10.17
0.6
0.6
2.03
10.38
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
30.58
0.6
0.6
2.03
40.55
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.031
0.442
0.108
0.1
0.0312
0.695
0.50
0.54
0.491
0.005
0.009
0.031
0.303
0.482
0.656
0.005
0.048
Ref
Tmin
K
Tmax
K
pmin
MPa
pmax
MPa
19
298.15
298.15
0.10
0.10
bmin
bmax
102∆AAD
-1
mol ⋅ kg mol ⋅ kg-1
0.004
102∆Bias
102∆MAD
N
0.341
0.011
-0.011
0.024
9
1.001
1.000
0.999
0.100
1.040
0.999
0.845
0.018
0.064
0.017
0.006
0.009
0.007
0.021
-0.012
0.015
0.005
0.005
0.004
0.007
-0.001
0.075
0.256
0.063
0.021
0.026
0.012
0.091
77
18
183
7
28
10
15
5.972
2.329
3.001
4.500
3.090
5.046
4.991
4.393
1.000
6.000
1.027
4.000
4.999
6.014
1.000
0.346
5.948
5.134
5.046
6.198
6.200
6.100
5.997
5.952
5.924
3.602
2.500
1.500
4.000
1.250
1.000
4.500
1.000
6.040
1.001
4.000
3.265
4.991
0.146
0.021
0.021
0.016
0.022
0.022
0.013
0.014
0.018
0.023
0.003
0.008
0.120
0.018
0.006
0.005
0.020
0.004
0.013
0.008
0.013
0.009
0.014
0.010
0.005
0.033
0.048
0.050
0.009
0.038
0.008
0.068
0.009
0.005
0.060
0.041
0.010
0.009
-0.133
-0.016
0.005
-0.006
-0.021
-0.008
-0.004
-0.009
-0.016
0.000
0.001
-0.004
0.056
0.007
-0.004
-0.005
0.009
0.000
0.008
-0.003
0.001
-0.007
0.003
-0.006
-0.003
0.023
0.040
-0.050
-0.009
0.038
-0.008
-0.019
-0.009
0.004
-0.060
0.020
0.001
-0.001
0.327
0.036
0.056
0.041
0.039
0.114
0.039
0.073
0.039
0.093
0.008
0.025
0.395
0.137
0.060
0.009
0.052
0.008
0.030
0.022
0.051
0.021
0.055
0.033
0.016
0.150
0.196
0.535
0.018
0.093
0.012
0.138
0.013
0.012
0.205
0.154
0.090
0.022
6
8
12
32
8
326
32
48
24
29
5
27
25
123
201
12
36
10
17
140
33
36
25
36
57
28
28
32
15
7
6
10
6
13
4
5
33
8
KI(aq)
28
32
29
30
31
18
33
278.15
348.15
278.15
296.02
297.19
298.15
278.15
368.15
423.15
338.15
321.1
373.17
298.15
338.15
0.35
2.03
0.10
0.10
0.6
0.1
0.1
0.35
2.03
0.10
0.10
0.6
0.1
0.1
0.015
0.100
0.100
0.050
0.010
0.049
0.221
NaCl(aq)
36
50
51
55
57
63
12
67
81
34
40
42
3
47
49
54
6
59
63
22
14
15
24
71
72
79
80
26
37
35
41
46
48
59
60
62
64
12
373.56
373.15
298.15
298.15
393.40
321.57
298.15
348.15
348.15
288.15
318.15
293.15
283.15
263.00
277.15
298.15
297.05
308.12
323.16
308.15
278.15
303.15
278.15
278.15
288.15
298.15
318.15
273.15
293.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
473.40
475.94
448.57
413.15
393.40
498.90
298.15
473.15
473.15
323.15
318.15
313.15
353.15
293.00
343.15
328.15
371.82
308.12
323.16
368.15
308.15
318.15
318.15
318.15
318.15
423.15
448.15
308.15
303.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
6.96
0.50
10.00
2.00
1.00
0.10
10.38
2.03
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
30.20
10.22
28.25
2.00
37.40
40.16
40.78
2.03
2.03
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
5.972
0.115
3.001
0.500
0.051
0.003
0.058
0.053
0.100
0.050
0.101
0.000
0.501
0.009
0.100
0.089
0.108
0.084
0.056
0.217
0.400
0.000
0.371
0.787
0.062
0.100
0.100
0.010
0.100
0.050
0.000
0.000
0.000
0.504
0.295
0.500
0.020
0.058
Ref
Tmin
K
Tmax
K
pmin
MPa
pmax
MPa
66
15
68
24
71
18
26
52
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
bmin
bmax
102∆AAD
-1
mol ⋅ kg mol ⋅ kg-1
0.012
0.000
0.279
0.378
0.995
0.010
0.010
0.022
102∆Bias
102∆MAD
N
1.844
6.100
5.105
5.993
5.952
1.000
1.500
6.024
0.005
0.020
0.010
0.006
0.014
0.008
0.006
0.008
-0.004
-0.020
-0.010
-0.005
-0.014
-0.008
-0.006
-0.001
0.011
0.030
0.032
0.012
0.032
0.011
0.011
0.026
17
9
10
21
17
12
25
54
1.000
3.012
2.013
4.632
1.003
4.500
3.608
1.000
0.828
4.000
4.501
5.229
0.100
4.500
0.477
0.600
4.500
0.997
3.012
4.818
1.005
4.500
3.993
4.400
1.025
3.308
0.020
0.014
0.003
0.032
0.009
0.010
0.036
0.009
0.011
0.099
0.010
0.094
0.010
0.007
0.001
0.006
0.007
0.051
0.037
0.013
0.010
0.009
0.024
0.030
0.015
0.005
-0.006
-0.013
0.003
-0.010
0.009
0.009
0.035
0.009
0.011
0.099
-0.003
-0.003
0.010
-0.006
0.000
0.006
-0.006
0.051
0.033
0.013
0.010
-0.008
0.015
-0.029
0.015
0.005
0.105
0.048
0.014
0.077
0.018
0.023
0.151
0.027
0.022
0.106
0.058
0.270
0.011
0.015
0.002
0.012
0.016
0.148
0.148
0.033
0.017
0.017
0.053
0.066
0.022
0.017
23
28
29
16
7
36
24
201
16
8
97
37
14
4
4
12
5
10
10
24
10
10
8
21
24
15
KCl(aq)
81
12
31
92
27
15
79
49
33
84
85
100
186
89
60
93
62
140
12
52
18
15
77
85
95
96
348.15
298.15
297.19
308.15
323.15
303.15
313.15
277.15
273.20
303.15
278.15
313.15
291.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
473.15
298.15
371.97
318.15
323.15
318.15
423.15
343.15
338.15
303.15
368.15
353.15
358.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
298.15
2.03
10.38
0.60
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
2.03
40.64
0.60
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.100
0.059
0.010
0.045
0.029
0.500
0.100
0.100
0.190
0.050
0.005
0.443
0.100
0.500
0.131
0.009
0.500
0.040
0.059
0.021
0.100
0.000
0.498
0.051
0.412
0.000
0.2
(b) 0.5
0.1
0.3
102 (∆ρ / ρ)
102(∆ρ/ρ)
(a)
0.0
-0.1
0.1
-0.1
-0.3
-0.5
-0.2
0.0
0.3
0.6
0.9
0
1.2
1
3
4
5
6
5
6
b/(mol.kg-1)
b/(mol.kg-1)
(d) 0.3
(c) 0.3
0.2
0.1
0.0
-0.1
-0.2
-0.3
102 (∆ρ/ ρ)
102 (∆ρ / ρ)
2
0
1
2
3
4
b/(mol.kg-1)
5
6
0.2
0.1
0.0
-0.1
-0.2
-0.3
0
1
2
3
4
b/(mol.kg-1)
Fig S1. Relative deviations ∆ρ/ρ of densities ρ from the present model for CaCl2(aq) as a
function of molaity b. (a): high p, high T, () Safarov et al,1 T = 323 K to 398 K, p = 5.7
MPa to 59.9 MPa. () Oakes et al.,5 T = 323 K to 473 K, p = 7.1 MPa to 41.5 MPa. ()
Gates and Wood,9 T = 323 K to 450 K, p = 1 MPa to 40.7 MPa. () Ellis,20 T = 348 K to 473
K, p = 2.0 MPa. (b): 0.1 MPa, 298.15 K, () Zhang et al.,4 () Oakes et al.,5 () Wimby
and Berntsson,8 () Gates and Wood,12 () Isono,13 () Kumar et al.,16 () Perron et al.,17
() Millero et al.,18 (c): 0.1 MPa, () Safarov et al.,1 T = 323 K to 398 K, () Yan et al.,2 T
= 288 to 288 K to 308 K, () Saluja et al.,6 T = 322 K to 372 K, () Wimby and
Berntsson,8 T = 292 K to 352 K, () Gates and Wood,9 T = 323 K, () Isono,13 T = 288 K
to 323 K. (d): 298.15 K, () Safarov et al.,1 p = 5.4 MPa to 59.9 MPa, () Oakes et al.,5 p
= 7.3 MPa and 42 MPa, () Gates and Wood,12 p = 10.4 MPa to 40.6 MPa.
(b) 0.10
0.05
102 (∆ρ / ρ)
102 (∆ρ /ρ)
(a) 0.10
0.00
-0.05
-0.10
0.05
0.00
-0.05
-0.10
0
1
2
3
4
5
0
1
2
4
5
b/(mol.kg-1)
b/(mol.kg-1)
(c) 0.02
(d) 0.20
0.00
102 (∆ρ / ρ)
102 (∆ρ / ρ)
3
-0.02
-0.04
-0.06
0
10
20
30
p/MPa
40
0.10
0.00
-0.10
-0.20
0
1
2
3
4
b/(mol.kg-1)
Fig. S2. Relative deviations ∆ρ/ρ of densities ρ from the present model for MgCl2 (aq) as a
function of molaity b. (a): p = 0.1 MPa, T = 298.15 K, () Gates and Wood,9 () Miller et
al.,23 () Perron,17() Phang,25 () Chen et al.,26 () Millero et al.,18 () Perron et al.,19.
(b): p = 0.1 MPa, () Connaughton et al.,22 T = 308 K to 368 K, () Isono,13 T = 288 K to
328 K, () Romanklw and Chou,15 T = 303 K to 318 K, () Surdo,24 T = 278 K to 318 K,
() Chen et al.,26 T = 273 K to 308 K, () Millero and Knox,27T = 273 K to 323 K. (c): T =
298.15 K, Gates and Wood,12 (), b = 0.031 mol·kg-1 , (), b = 0.252 mol·kg-1, (), b =
0.489 mol·kg-1 , (), b = 0.992 mol·kg-1 , () , b = 2.952 mol·kg-1 . (d): high p, high T, ()
Obsil et al.,21 T = 369 K to 450 K, p = 10.2 MPa to 30.6MPa, () Saluja et al.,6 T = 297 K to
372 K, p = 0.6 MPa, () Saluja and Leblanc,10 T = 297 K to 372 K, p = 0.6 MPa, ()
Ellis.,20 T = 348 K to 473 K, p = 2.0 MPa.
(a) 0.05
(b) 0.2
102 (∆ρ / ρ)
102 (∆ρ / ρ)
0.00
-0.05
0.1
0.0
-0.1
-0.10
-0.2
0.0
0.4
0.8
-1
b/(mol.kg )
0.0
0.2
0.4
0.6
0.8
1.0
b/(mol.kg-1)
Fig. S3. Relative deviations ∆ρ/ρ of densities ρ from the present model for KI (aq) as a
function of molaity b. (a): p = 0.1 MPa, () Apelblat and Manzurola,29 T = 278 K to 338 K,
() Lemire et al.,30 T = 296 K and 321 K, () Millero et al.,18 T = 298.15 K, () Dunn,33 T
= 278 K to 338 K. (b): () Swenson and Woolley.,28 T = 278 K to 368 K, p = 0.35 MPa, ()
Ellis,20 T = 348 K to 423 K, p = 2.0 MPa, () Saluja et al.,31 T = 297 K to 373 K, p = 0.6
MPa
Figure S4: Relative deviations ∆ρ/ρ of densities ρ from the present model for NaCl(aq) as a
function of molaity b. (a): 298.15 K, 0.1 MPa, () Singha and Sharmaa,35 () Soto et al.,41
() Chenlo et al46 () Zhuo et al.,48 () Oakes et al.,59 () Kawaizumi et al.,60 () 62, ()
Lankford and Criss,64 () Gates and Wood,12 () Lankford, et al.,66 () Romankiw and
Chou,15 () Alary et al.,68 () Surdo et al.,24 () Perron et al.,71 () Millero et al.,18 ()
Chen et al.,26 () Zhang and Han.52 (b): 0.1 MPa, T, () Sandengen and Kaasa,34 (288.15 to
323.15) K, () Mendonça et al.,40 (318.15 K), () Comesaña et al.,42 (293.15 to 313.15) K,
() Kiepe et al.,3 (283.15 to 353.15) K, () Mironenko et al.,47 (263.00 to 293.00) K, ()
Apelblat and Manzurola,49 (277.15 to 343.15) K, () Patel and Kishore,54 (298.15 to 328.15)
K, () Saluja et al.,6 (297.05 to 371.82) K, () Oakes et al.,59 (308.12) K, () Majer et al.,63
(323.16) K, () Connaughton et al.,22 (308.15 to 368.15) K, () Kumar and Atkinson,14
(278.15 to 308.15) K, () Romankiw and Chou,15 (303.15 to 318.15) K, () Surdo et al.,24
(278.15 to 318.15) K, () Perron et al.,71 (278.15 to 318.15) K, () Dessauges et al.,72
(288.15 to 318.15) K, () Korosi and Fabuss.,79 (298.15 to 423.15) K, ()Fabuss et al.,80
(318.15 to 448.15 ) K, () Chen et al.,26 (273.15 to 308.15) K, () Galleguillos et al.,37
(293.15 to 303.15) K. (c): high P, High T, () Corti and Simonson,36 (373.56 to 473.27) K
and (7.09 to 30.05) MPa, () Xiao and Trentaine,50 (373.18 to 475.94) K and (0.5 to 10.02)
MPa, () Sharygin and Wood,51 (298.15 to 448.57) K and (10.10 to 28.25) MPa, ()
Manohar et al.,55 (298.15 to 413.15) K and (2.0) MPa, () Majer et al.,58 (393.40) K and (1.0
to 37.40) MPa, () Majer et al.,63 (323.05 to 498.90) and (0.1 to 40.16) MPa, () Gates and
Wood,12 (298.15) K and (10.38 to 40.68) MPa, () Rogers et al.,67 (348.15 to 473.15) K and
(2.03) MPa, () Ellis,81 (348.15 to 473.15) K and (2.03) MPa.
Figure S5: Relative deviations ∆ρ/ρ of densities ρ from the present model for KCl(aq) as a
function of molaity b. (a): 298.15 K, 0.1 MPa, () Kumar,104 () MacInnes and Dayhoff,93
() Kawaizumi et al.,60 () Kumar,62 () Gates and Wood,12 () Zhang and Han,52 ()
Ruby and Kawai,101 () Millero et al.,18 () Romankiw and Chou.,15 () Ostroff et al.,77
() Dedick et al.,85 () Parton et al.,95 () Jones and Ray.96 (b): high P, High T, () Ellis,81
(348.15 to 473.15) K and (2.03) MPa, () Gates and Wood,12 (298.15) K and (10.38 to
40.64) MPa, () Saluja et al.,31 (297.19 to 371.97) K and (0.6) MPa. (c): 0.1 MPa, T, ()
Firth and Tyrrell,92 (308.15 to 318.15) K, () Millero and Knox,27 (323.15) K, ()
Romankiw and Chou,15 (303.15 to 318.15) K, () Korosi and Fabuss,79 (313.14 to 423.15)
K, () Apelblat and Manzurola,49 (277.15 to 343.15) K, () Dunn,33 (278.15 to 338.15) K,
() Galleguillos et al.,84 (303.15) K, () Dedick et al.,85 (278.15 to 368.15) K, () Harrison
and Perman.,100 (313.15 to 353.15), () Sulston,186 (291.15 to 358.15) K.
1180
ρ/kg·m-3
1130
1080
1030
980
0
1
2
3
4
5
6
b/kg·mol-1
Figure S6: Densities ρ of NaCl-KCl (aq) solution as a function of molality b at different
molar fractions of KCl y: () our work, y = 0.136. () Zhang,52 y = 0.251. () Zhang,52 y =
0.750. ()Zhang,52 y = 1.0.
References
1.
Safarov, J. T.; Najafov, G. N.; Shahverdiyev, A. N.; Hassel, E., (p,ρ,T) and (ps,ρs,Ts) properties,
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2.
Yan, Z.; Wang, J.; Kong, W.; Lu, J., Effect of temperature on volumetric and viscosity properties
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