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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
1-Methylnaphthalene with Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) 1-Methylnaphthalene; C11H10; [90-12-0]
NIST Chemistry WebBook
for detail
Evaluator:
G.T. Hefter, School of Mathematical and Physical Sciences, Murdoch University, Perth, W.A., Australia. February 1986.
Critical Evaluation:
Quantitative solubility data for the 1-methylnaphthalene (1) – water (2) system have been reported in the publications listed in Table 1.
The original data in all of these publications are compiled in the Data Sheets immediately following this Critical Evaluation.
For further convenience further discussion of this system is divided into two parts.
1. SOLUBILITY OF 1-METHYLNAPHTHALENE (1) IN WATER (2)
All the available data on the solubility of 1-methylnaphthalene in water are summarized in Table 1 with the exception of those of Schwarz and Wasik which have been rejected as they are much more scattered that those in the paper by Schwarz (ref 5). There are insufficient data to warrant plotting.
At 298K, the only temperature where comparison is possible, the data are in excellent agreement and the average value can be Recommended. At other temperatures only the data of Schwarz (ref 5) are available and must thus be considered as Tentative only.
2. SOLUBILITY OF WATER (2) IN 1-METHYLNAPHTHALENE (1)
As only the data of Englin
et al.
(ref 1) are available on the solubility of water in 1-methylnaphthalene no Critical Evaluation is possible. However, it may be noted that the solubility values of Englin
et al.
are generally reliable for
T
< 300K but are larger than Recommended values at higher temperatures. The interested user is referred to the relevant Data Sheet for experimental values.
Experimental Data:
(Notes on the Nomenclature)
Table 1. Quantitative Solubility Studies of the 1-Methylnaphthalene (1) - Water (2) System
Author
T/K
Reference
Solubility
Method
Englin
et al.
273-323
1
(2) in (1)
analytical
Eganhouse and Calder
298
2
(1) in (2)
GLC
Mackay and Shiu
298
3
(1) in (2)
spectrofluorometric
Schwarz and Wasik
283-298
4
(1) in (2)
spectrofluorometric
Schwarz
282-305
5
(1) in (2)
spectrophotometric
Table 2. Recommended (
R
) and Tentative Values of the Solubility of 1-Methylnaphathalene (1) in Water (2)
T/K
Reference
Sol. Power
Solubility
Sol. Note
Best Sol. Power
Best Solubility
Best Sol. Note
x
1
Power
x
1
x
1
Note
283
5
3
2.05* g(1)/100g sln
a
3
2.1 g(1)/100g sln
b
6
2.7
b
293
5
3
2.56* g(1)/100g sln
a
3
2.6 g(1)/100g sln
b
6
3.3
b
298
2, 3, 5
3
2.58, 2.85, 2.95* g(1)/100g sln
a
3
2.8 ± 0.2
b
(
R
) g(1)/100g sln
b
6
3.5 (
R
)
b
303
5
3
3.35* g(1)/100g sln
a
3
3.4 g(1)/100g sln
b
6
4.3
b
Notes:
Table 2
a
Values marked with an asterisk (*) have been obtained by the Evaluator by graphical interpolation of the original data.
Table 2
b
Obtained by averaging where relevant; σ
n
has no statistical significance.
References: (Click a link to see its experimental data associated with the reference)
1
Englin, B.A.; Plate, A.F.; Tugolukov, V.M. Pryanishnikova, M.A., Khim. Tekhnol. Topl. Masel 1965, 10, 42-6.
2
Eganhouse, R.P.; Calder, J.A., Geochim. Cosmochim. Acta 1976, 40, 555-61.
3
Mackay, D.; Shiu, W.Y., J. Chem. Eng. Data. 1977, 22, 399-402.
4
Schwarz, F.P.; Wasik, S.P., J. Chem. Eng. Data 1977, 22, 270-3.
5
Schwarz, F.P., J. Chem. Eng. Data. 1977, 22, 273-7.