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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Toluene with Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Toluene; C7H8; [108-88-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Bradley, R.S.; Dew, M.J.; Munro, D.C., High Temp. High Press. 1973, 5, 169-76.
Variables:
Temperature = 25-55 °C
Pressure = 1-1200 bar
Prepared By:
G.T. Hefter
Experimental Remarks:
Data at other pressures are presented in graphical form. Data are also presented for the solubility of (1) in aqueous solutions of AgNO
3
and KNO
3
at various temperatures and pressures.
Experimental Data:
(Notes on the Nomenclature)
Solubility of toluene in water
t/°C
Pressure [bar]
g
1
/100 g solution (compiler)
g
1
/100 g soln. Note (compiler)
10
4
* Mole Fraction x
1
(compiler)
x
1
Comp Note
25
1 (b)
0.0547
a
1.07
a
45
1 (b)
0.0722
a
1.41
a
0.00785
55
1 (b)
0.086
a
1.68
a
0.0094
45
1000 (b)
0.111
a
2.17
a
0.0121
55
1000 (b)
0.0121
a
2.37
a
0.0131
Notes:
Table 1
Data at other pressures are presented in graphical form. Data are also presented for the solubility of (1) in aqueous solutions of AgNO
3
and KNO
3
at various temperatures and pressures.
Table 1
a
Assuming a solution density of 1.00 kg/L at all temperatures and pressures.
Table 1
b
1 bar = 0.1 MPa exactly.
Method/Apparatus/Procedure:
The solubility of (1) in (2) at room temperature and pressure was determined in a stoppered 1 mm silica cuvette placed in a Unicam SP500 spectrophotometer and stirred magnetically. Measurements were made until a constant concentration was reached. The value was crosschecked against a 2-L sample of saturated solution which had been equilibrated for some months.
Solubilities at higher temperature and pressure were similarly determined in a special cell fitted into the spectrophotometer. Many details of the apparatus are given in the paper.
Source and Purity of Materials:
(1) Not specified.
(2) Distilled, air-free
Estimated Errors:
Temperature: Not specified.