IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: 1-Hexene with Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Hexene; C6H12; [592-41-6]  NIST Chemistry WebBook for detail

Evaluator:
   A. Maczynski, Institute of Physical Chemistry, Polish Academy of Sciences, Warszawa, Poland.
G.T. Hefter, School of Mathematical and Physical Sciences, Murdoch University, Perth, W.A., Australia. November 1984.

Critical Evaluation:

   Quantitative solubility data for the system 1-hexene (1) and Water (2) have been reported in the publications listed in Table 1.

Solubility of 1-hexene in dilute aqueous HNO₃ solutions have also been reported (ref 5) but will not be considered in this Evaluation.

The original data in all of these publications (ref 1-5) are compiled in the Data Sheets immediately following this Critical Evaluation. For convenience, further discussion of this system will be divided into two parts.

1. THE SOLUBILITY OF 1-HEXENE(1) IN WATER (2)

The solubility data for 1-hexene in water are given in Table 2.

2. THE SOLUBILITY OF WATER (2) IN 1-HEXENE (1)

The solubility data for water in 1-hexene are listed in Table 3. As data have not been obtained under comparable conditions they must be classified as “Tentative”. However, it can be noted that in (other) well characterized systems the data of Englin et al. (ref 1) at T<300K are usually close to “Recommended” values. The data of Budantseva et al (ref 4) on the other hand are often high.

Experimental Data:   (Notes on the Nomenclature)

Table 1. Quantitative Solubility Studies of the 1-Hexene (1) - Water (2) System
Author	T/K	Reference	Solubility	Method
Englin et al.	303	1	(2) in (1)	analytical
McAuliffe	298	2	(1) in (2)	GLC
Leinonen and Mackay	298	3	(1) in (2)	GLC
Budantseva et al.	293	4	mutual	GLC, Karl Fischer

Table 2. Recommended (R) and Tentative Values of the Solubility of 1-Hexene (1) in Water (2)
T/K	Reference	Sol. Power	Solubility	Best Sol. Power	Best Solubility	Best Sol. Note	x₁ Power	x₁	x₁ Note
293	4	3	5 g(1)/100g sln	3	1 g(1)/100g sln	a	5	1	a
298	2, 3	3	5.0, 5.54 g(1)/100g sln	3	5.3 ± 0.3 (R) g(1)/100g sln	a	5	1.14 (R)	a

Table 3. Tentative Values of the Solubility of Water (2) in 1-Hexene (1)
T/K	Reference	Solubility	x₂ Power	x₂
293	4	0.029 g(2)/100 g sln	3	1.4
303	1	0.048 g(2)/100 g sln	3	2.2

Notes:
Table 2^a  "Best" values obtained by averaging where possible; 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  McAuliffe, C., J. Phys. Chem. 1966, 70, 1267-75.
   3  Leinonen, P.J.; Mackay, D., Can. J. Chem. Eng. 1973, 51, 230-3.
   4  Budantseva, L.S.; Lesteva, T.M.; Nemstov, M.S., Zh. Fiz. Khim. 1976, 50, 1344. Deposited doc. 1976, VINITI 437-76.
   5  Natarajan, G.S.; Venkatachalam, K.A., J. Chem. Eng. Data 1972, 17, 328-9.