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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Benzene with Sodium Chloride and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Benzene; C6H6; [71-43-2]
NIST Chemistry WebBook
for detail
(3) Sodium Chloride; NaCl; [7647-14-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Umano, S.; Hayano, I., Kogyo Kagaku Zasshi 1957, 60, 1436-7.
Variables:
Temperature = 20-284 °C
Concentration = Concentration of NaCl
Prepared By:
H. Miyamota and G.T. Hefter
Experimental Data:
(Notes on the Nomenclature)
Solubility of water in benzene at system pressure
t/°C
g
2
/100 g solution
10
2
* Mole Fraction x
2
(compiler)
Comment(s)
281.0
28.46
63.29
Concn. NaCl
a
=0.0
271.5
25.11
59.24
Concn. NaCl
a
=0.0
250.1
17.22
47.41
Concn. NaCl
a
=0.0
223.0
8.98
29.95
Concn. NaCl
a
=0.0
186.0
4.42
16.7
Concn. NaCl
a
=0.0
78.0
0.240
0.103
Concn. NaCl
a
=9.939
66.0
0.189
0.814
Concn. NaCl
a
=9.939
40.0
0.0762
3.29
Concn. NaCl
a
=9.939
20.2
0.042
1.82
Concn. NaCl
a
=9.939
284.0
27.44
62.11
Concn. NaCl
a
=10.0
265.0
18.91
50.27
Concn. NaCl
a
=10.0
249.0 (b)
13.02
39.35
Concn. NaCl
a
=10.0
223.0 (b)
7.65
26.4
Concn. NaCl
a
=10.0
183.5
3.70
14.3
Concn. NaCl
a
=10.0
81.0
0.155
0.67
Concn. NaCl
a
=19.200
63.0
0.079
0.34
Concn. NaCl
a
=19.200
40.0
0.037
0.16
Concn. NaCl
a
=19.200
21.0
0.024
0.10
Concn. NaCl
a
=19.200
280.0
17.93
48.6
Concn. NaCl
a
=20.0
265.0
13.56
40.5
Concn. NaCl
a
=20.0
245.0
7.96
27.3
Concn. NaCl
a
=20.0
221.0
3.98
15.2
Concn. NaCl
a
=20.0
178.0
1.52
6.3
Concn. NaCl
a
=20.0
277.5
15.17
43.7
Concn. NaCl
a
=20.0
268.5
12.47
38.2
Concn. NaCl
a
=20.0
245.5
6.69
23.7
Concn. NaCl
a
=20.0
219.0
3.85
14.8
Concn. NaCl
a
=20.0
178.0
1.58
6.5
Concn. NaCl
a
=20.0
Notes:
Table 1
a
Stated as % in paper: presumably g(2)/100 g sln (compilers).
Table 1
b
Given as 294.0 in the original (corrected in personal communication by the authors to H. Miyamoto).
Table 1
c
p = 54.23 atm
Method/Apparatus/Procedure:
At higher temperatures: (1) and the aqueous brine were placed in an autoclave, described in detail in the paper, and equilibrated by stirring. After settling, the solubility of (3) in (1) was determined volummetrically by withdrawing layers from the autoclave into a burette. At lower temperatures: (1) and the aqueous solution were refluxed in a flask at constant temperature.
After equilibration, an aliquot of the water rich layer was withdrawn and analysed argentometrically and the solubility of (3) in (1) calculated. The solubility of NaCl in benzene was determined to be negligible in these experiments (8 x 10
-5
mol dm
-3
at 223°C and 54.23 atm).
Source and Purity of Materials:
(1) c.p. grade, source not specified; purified by single fractional distillation.
(2) not specified.
c.p. grade, source not specified; recrystallized.
Estimated Errors:
Temperature: not specified.