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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Organic compounds containing N, for pressures greater than 0.2 MPa (2 atm)
Components:
(1) Organic compounds containing N, for pressures greater than 0.2 MPa (2 atm); ; []
NIST Chemistry WebBook
for detail
(2) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
Evaluator:
Walter Hayduk, Department of Chemical Engineering, University of Ottawa, Ottawa, ON, Canada, K1N 6N5
March, 1994
Critical Evaluation:
Critical Evaluation of Ethene Solubility’s in Organic Compounds Containing Nitrogen for Pressures greater than 0.20 MPa
Solubility of ethene is available for only two organic solvents containing nitrogen at pressures above 0.20 MPa. These two solvents are N, N-dimethylformamide and 1-methyl-2-pyrrolidinone.
N, N-Dimethylformamide; C
3
H
7
NO; [68-12-2]
Ethene solubility in N,N-dimethylformamide was reported for the temperatures 298.15 K, 323.15 K and 343.15 K and for pressures in the range of 0.79 MPa to 4.22 MPa by Shakhova
et al
.
1
. The vapor pressure for this solvent is very low so that the total pressure was considered to be the gas partial pressure. The data that were found to be essentially consistent were used to develop an equation relating the mole fraction solubility to the gas partial pressure in MPa. It is noted that the pressure in bar divided by 10 is equivalent to MPa.
log
x
p
= 457.46(
T
/K)
–1
+ 0.9862 log (
p
/MPa) – 2.7274
(1)
Only the last data point for a temperature of 343.15 K was omitted because it was obviously inconsistent. Otherwise, the data are well described by Eq. (1); the average, and maximum deviations from the equation are 1.4%, and 4.7%, respectively. It is further noted that extrapolation of Eq. (1) for a temperature of 298.15 K to a pressure of 0.1013 MPa yielded a solubility of 0.0067 mole fraction in good agreement with reliable solubility measured at that pressure and also the value obtained using the Henry’s law constant reported on the data sheet.
These data are classified as tentative.
1-Methyl-2-pyrrolidinone; C
5
H
9
NO; [872-50-4]
Ethene solubility in 1-methyl-2-pyrrolidinone were also reported by Shakhova
et al
.
1
for the temperatures 298.15 K, 323.15 K and 343.15 K, and for a large range of pressures, from 0.375 MPa to 9.46 MPa. These data were found to be consistent; however, a curvature of the line representing the relation between log (
x
p
/mole fraction) and log(
p
/MPa) was observed. The following equation that contains a correction factor for the curvature was developed for all the data for this solvent:
log (
x
p
) = 486.13 (
T
/K)
–1
+ 0.9930 log (
p
/MPa) – 0.012 p – 2.755
(2)
The average, and maximum deviations of the values calculated using Eq. (2) from the data are 1.9%, and 6.5%, respectively. It is noted that Eq. (2) was extrapolated to a pressure of 0.1013 MPa for a temperature of 298.15 K to obtain a mole fraction solubility of 0.0077 which can be compared with the value based on the Henry’s law constant recorded on the data sheet, of 0.0074 mole fraction ethene. similarly, this extrapolated value compares very favorably with the actual experimental value as discussed in the preceding chapter of this volume. It is further noted that the vapor pressure of this solvent is also low, so that the total pressures on the data sheet were considered to be gas partial pressures in the development of Eq. (2).
These data are classified as tentative.
Experimental Data:
(Notes on the Nomenclature)
References: (Click a link to see its experimental data associated with the reference)
1
Shakhova, S.F.; Zubchenko, Yu P.; Rezina, O.A., Khim. Prom., 1973, 49, 271-2.