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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Argon with Nitrogen, Carbon dioxide, Methane and Poly(vinyl chloride) (PVC)
Components:
(1) Argon with Nitrogen, Carbon dioxide, Methane; Ar, N2, CO2, CH4; [7440-37-1, 7727-37-9, 124-38-9, 74-82-8]
NIST Chemistry WebBook
for detail
(2) Poly(vinyl chloride) (PVC); ; [9002-86-2]
NIST Chemistry WebBook
for detail
Original Measurements:
M.J. El-Hibri and D.R. Paul, J. Appl. Polym. Sci. 31, 2533 (1986).
Variables:
Temperature = 308 K
Pressure = 308 K
Prepared By:
Yu. P. Yampol'skii
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
Dual mode sorption parameters for various gases in PVC at 308 K
T/K
Chemical Name
Henry's law constant, K [cm
3
(STP) cm
-3
cm Hg
-1
]
Langmuir's parameter, C
H
[cm
3
(STP) cm
-3
]
Affinity Coefficient b [atm
-1
]
308
Ar
0.0377
1.1320
0.0410
308
N2
0.0169
0.4505
0.0448
308
Co2
0.5870
8.9390
0.2094
308
CO2*
0.6340
4.8500
0.3610
308
CO2**
0.5800
5.1600
0.2430
308
CH4
0.0513
2.3050
0.0622
View Figure 1 for this Evaluation
Notes:
*
No drawing, annealing at 358 K.
**
Stretching to draw ratio 3 at 358 K.
Method/Apparatus/Procedure:
The sorption measurement was carried out using the pressure decay method, Ref. 1.
Source and Purity of Materials:
CH
4
: purity 99 %.
Other gases: purity 99.7 %.
PVC: B.F. Goodrich Co. (CS 5760); density 1.389 g/cm
3
, glass transition temperature 344 K. It contained 2 % of tin stabilizer.
Estimated Errors:
Temperature: No information given.
References:
1
W.J. Koros, D.R. Paul, A.A. Rocha, J. Polym. Sci., Polym, Phys. Ed. 14, 687 (1976).