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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Benzene with Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Benzene; C6H6; [71-43-2]
NIST Chemistry WebBook
for detail
Original Measurements:
Sanemasa, I.; Araki, M.; Deguchi, T.; Nagai, H., Bull. Chem. Soc. Jpn. 1982, 55, 1054-62.
Variables:
Temperature = 5-45°C
Prepared By:
G.T. Hefter
Experimental Data:
(Notes on the Nomenclature)
Solubility of benzene in water
t/°C
10
3
* Concentration c
1
[mol dm**-3]
g
1
/100 g solution (compiler)
g
1
/100 g soln. Note (compiler)
10
4
* Mole Fraction x
1
(compiler)
x
1
Comp Note
5
20.7
0.162
a
3.73
a
15
20.2 ± 0.3
0.158
a
3.65
a
25
20.7 (b) ± 0.6
0.162
a
3.74
a
35
21.8 ± 0.6
0.171
a
3.94
a
45
22.8 ± 0.5
0.180
a
4.15
a
Notes:
Table 1
a
Assuming solution densities to be the same as those of pure water at the same temperature (ref 1).
Table 1
b
No error estimate given.
Method/Apparatus/Procedure:
The apparatus is similar to an earlier design (ref 2) and is described in detail and in the paper. 100-200 cm
3
of (2) and 10-20 cm
3
of liquid (1) were placed in separate but connected thermostatted flasks. After thermal equilibrium was established a recirculating stream of air was used to vaporize liquid (1) and to transport the vapor to the flask containing (2). Five 10 cm
3
aliquots were withdrawn into separatory funnels. The concentration of (1) in (2) was then determined by extraction into chloroform followed by UV-spectrophotometry. Standards for the spectrophotometry were prepared by weight from pure liquid solutes.
Source and Purity of Materials:
(1) Analytical reagent grade (Wako Pure Chemical Ind. Ltd.), stated purity 99.5%, used without further purification.
(2) Redistilled; no further details given.
Estimated Errors:
Solubility: see table, type of error not specified.
Temperature: ± 0.01°C
References:
1
Kell, G.S. J. Chem. Eng. Data 1975, 20, 97.
2
Sanemasa, I.; Araki, M.; Deguchi, Y.; Nagai, H. Chem. Lett. 1981, 225-8.