IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: o-Xylene with Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) o-Xylene; C8H10; [95-47-6]  NIST Chemistry WebBook for detail

Evaluator:
   G.T. Hefter, School of Mathematical and Physical Sciences, Murdoch University, Perth, W.A., Australia. July 1985.

Critical Evaluation:

    Quantitative solubility data for the o-xylene (1) – water (2) system have been reported in the publications listed in Table 1..

The original data in these publications are compiled in the Data Sheets immediately following this Critical Evaluation. Alwani and Schneider (ref 5) have also reported data on a critical locus at high temperatures and pressures. For convenience further discussion of this system will be given in two parts..

1 SOLUBILITY OF O-XYLENE (1) IN WATER (2)

The high temperature, high-pressure data of Guseva and Parnov (ref 2) and Alwani and Schneider (ref 5) have been obtained under quite different conditions and thus no Critical Evaluation of their data is possible. However, it may be noted that the data of Guseva and Parnov are frequently unreliable. The interested user is referred to the relevant Data Sheets for experimental values.

At atmospheric pressure all the available data are listed in Table 2 except for the value of Krzyzanowska and Szeliga (ref 9) which does not appear to be independent of that of Price a (ref 8) and has therefore been excluded from consideration..

At 298K, the data of McAuliffe (ref 3), Sutton and Calder (ref 7), Price (ref 8) and Sanemasa et al. (ref 10) are in excellent agreement and their average is Recommended. The values of Andrews and Keefer (ref 1) and Polak and Lu (ref 6) are markedly higher (> 3σ_n) and are rejected.

At other temperatures only the data of Sanemasa et al. (ref 10) are available except for the 273 K datum of Polak and Ly (ref 6). These data are therefore regarded as Tentative.

Selected data are plotted in Figure 1

2 SOLUBILITY OF WATER (2) IN O-XYLENE (1)

The available solubility values for water in o-xylene are listed in Table 3. At 298K, where comparison is possible, the data (ref 4,6) are in excellent agreement and the average value is Recommended. The remaining datum at 273K must be regarded as Tentative in the absence of confirmatory data..

At other temperatures only the data of Sanemasa et al. (ref 10) are available except for the 273K datum of Polak and Ly (ref 6). These data are therefore regarded as Tentative..

Experimental Data:   (Notes on the Nomenclature)

Table 1. Quantitative Solubility Studies of the o-Xylene (1) - Water (2) System
Author	T/K	Reference	Solubility	Method
Andrews and Keefer	298	1	(1) in (2)	spectrophotometric
Guseva and Parnov	385-524	2	(1) in (2)	unspecified
McAuliffe	298	3	(1) in (2)	GLC
Hoegfeldt and Blander	298	4	(2) in (1)	Karl Fischer
Polak and Lu	273,298	6	mutual	GLC, Karl Fischer
Sutton and Calder	298	7	(1) in (2)	GLC
Price	298	8	(1) in (2)	GLC
Krzyzanowska and Szeliga	298	9	(1) in (2)	GLC
Sanemasa et al.	299-318	10	(1) in (2)	spectrophotometric

Table 2. Recommeded (R) and Tentative Solubility Values of o-Xylene (1) in Water (2)
T/K	Reference	Sol. Power	Solubility	Best Sol. Power	Best Solubility	Best Sol. Note	x₁ Power	x₁	x₁ Note
273	5	2	1.42 g(1)/100g sln	2	1.4 g(1)/100g sln	a	5	2.4	a
288	10	2	1.68 g(1)/100g sln	2	1.7 g(1)/100g sln	a	5	2.9	a
298	3, 7, 8, 10	2	1.75, 1.705, 1.67, 1.79 g(1)/100g sln	2	1.73 ± 0.05 (R) g(1)/100g sln	a	5	2.93 (R)	a
308	10	2	1.98 g(1)/100g sln	2	2.0 g(1)/100g sln	a	5	3.4	a
218	10	2	2.14 g(1)/100g sln	2	2.1 g(1)/100g sln	a	5	3.6	a

Table 3. Recommended (R) and Tentative Values of the Solubility of Water (2) in o-Xylene (1)
T/K	Reference	Sol. Power	Solubility	Best Sol. Power	Best Solubility	x₂ Power	x₂
273	6	2	1.85 g(2)/100g sln	2	1.9 g(2)/100g sln	3	1.1
298	4, 6	2	4.5, 4.56 g(2)/100g sln	2	4.5 (R) g(2)/100g sln	3	2.6 (R)

View Figure 1 for this Evaluation

Notes:
Table 2^a  Obtained by averaging where appropriate; σ_n has no statistical significance.

References: (Click a link to see its experimental data associated with the reference)

   1  Andrews, L.J.; Keefer, R.M., J. Am. Chem. Soc. 1949, 71, 3644-77.
   2  Guseva, A.N.; Parnov, E.I., Vestn. Mosk. Univ. Khim. 1963, 18, 76-9.
   3  McAuliffe, C., Nature (London) 1963, 200, 1092-3.
   4  Hoegfeldt, E.; Bolander, B., Ark. Kemi 1964, 21, 161-86.
   5  Alwani, Z.; Schneider, G.M., Ber. Bunsenges. Phys. Chem. 1969, 73, 294-301.
   6  Polak, J.; Lu, B.C.Y., Can. J. Chem. 1973, 51, 4018-23.
   7  Sutton, C.; Calder, J.A., Environ. Sci. Technol. 1974, 8, 654-7.
   8  Price, L.C., Am. Assoc. Petrol. Geol. Bull. 1976, 60, 213-44.
   9  Krzyzanowska, T.; Szeliga, J., Nafta (Katowice) 1978, 12, 413-7.