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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
1,1,2-Trichloro-1,2,2-trifluoroethane with Water.
Components:
(1) 1,1,2-Trichloro-1,2,2-trifluoroethane; C2Cl3F3; [76-13-1]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Evaluator:
A. L. Horvath, Imperial Chemical Industries Limited, Runcorn, U.K.
Critical Evaluation:
Part 2.
The solubility of water (2) in 1,1,2-trichloro-1,2,2-trifluoroethane (1) was reported in three references.
1-3
It may be assumed that the data reported in the du Pont bulletins were produced in the same laboratories with similar methods and accuracy at 298.15 and 294.15 K, respectively. No significant deviation exists between the two data points. The higher solubility at 298.15 K is consistent with the expected increase of solubility with temperature. The two measurements at 294.15 K of du Pont
2
and Bacquias
3
compare favorably and are classified as Tentative in Table 2.
The 1,1,2-trichloro-1,2,2-trifluoroethane (1) and water (2) binary system is discussed in two parts; part 1 is 1,1,2-trichloro-1,2,2-trifluoroethane (1) in water and part 2 is water (2) in 1,1,2-trichloro-1,2,2-trifluoro-ethane (1).
Part 1.
The solubility of 1,1,2-trichloro-1,2,2-trifluoroethane (1) in water (2) has been reported by six work groups as recorded in the Compilation Sheets immediately following this Critical Evaluation. The data at 298.15 K are in good agreement except that of du Pont
1
, which are markedly higher than other results. It may be assumed that the data in du Pont bulletins
1,2
were produced in the same laboratories with similar methods during 1966, but with a significant discrepancy (factor of two). Consequently, the higher value is rejected. The remaining three values at 298.15 K show a good agreement.
2-4
.
The solubility data of Hellström
et al.
5
between 303 and 366 K show a continuous rise with temperature up to 330 K, but above this temperature the data decrease and are therefore rejected. The data of Howe
et al
.
6
between 283 and 303 K are considerably lower than the likely solubility and are also rejected. The recommended solubility values for 1,1,2-trichloro-1,2,2-trifluoroethane in water at 298.15 K are given in Table 1.
Experimental Data:
(Notes on the Nomenclature)
Table 1. Recommended solubility of 1,1,2-trichloro-1,2,2-trifluoroethane (1) in water (2)
t/°C
T/K
10
2
* Mass Fraction w
1
10
5
* Mole Fraction x
1
25
298.15
0.017
1.63
Table 2. Tentative solubility of water (2) in 1,1,2-trichloro-1,2,2-trifluoroethane (1)
t/°C
T/K
10
2
* Mass Fraction w
1
10
4
* Mole Fraction x
1
21
294.15
0.009
9.35
References: (Click a link to see its experimental data associated with the reference)
1
du Pont de Nemours & Company, Solubility Relationships between Fluorocarbons and Water, Tech. Bull. B-43, Wilmington, Del., 17 pp. (1966).
2
du Pont de Nemours & Company, Solubility Relationship of the Freon Fluorocarbon Compounds, Tech. Bull. B-7, Wilmington, Del., 16 pp. (1966).
3
Bacquias, G., Galvano 40, 677-81, 767-70 (1971).
4
Rauws, A.G.; Olling, M.; Wibowo, A.E., J. Pharm. Pharmac. 1973, 25, 718-22.
5
Hellström, G.W.; Jacobs, H.R.; Boehm, R.F., University of Utah, Report DGL-1549-6, Salt Lake City, Utah (December, 1976), 74 pp.
6
Howe, G.B.; Mullins, M.E.; Rogers, T.N., AFESC Tyndall Air Force Base, Report ESL-TR-86-66, Vol. 1, Florida, Sept. 1987, 86 pp. (AD-A188 571).