IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Methane and Poly(aryl-bis-hexafluoroisopropylidene ether ketone) (PAEK-12F)

Components:
   (1) Carbon dioxide with Methane; CO2, CH4; [124-38-9, 74-82-8]  NIST Chemistry WebBook for detail
   (2) Poly(aryl-bis-hexafluoroisopropylidene ether ketone) (PAEK-12F); ; [122165-97-3]  NIST Chemistry WebBook for detail

Original Measurements:
   J.M. Mohr and D.R. Paul, Polymer 32, 2387 (1991).

Variables:
   Temperature = 308 K
   Pressure = 0-2.0 MPa

Prepared By:
   V.I. Bondar

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)

Dual mode sorption parameters for carbon dioxide in PAEK-12F at 308 K
Henry's law constant, K [cm³(STP) cm^-3 cm Hg^-1]	Langmuir's parameter, C_H [cm³(STP) cm^-3]	Affinity Coefficient b [atm^-1]
0.970	14.32	0.381

Sorption isotherms of carbon dioxide and methane in PAEK-12F at 308 K (The original data were represented graphically)
Chemical Name	Pressure [MPa]	Sorption [(V₁(STP)/V₂)]
CO2	0.14	6.00
CO2	0.31	10.48
CO2	0.47	13.37
CO2	0.63	15.47
CO2	0.77	18.01
CO2	0.93	20.20
CO2	1.09	22.30
CO2	1.27	23.68
CO2	1.41	25.70
CO2	1.58	27.35
CO2	1.76	29.36
CO2	1.90	30.93
CO2	2.05	32.32
CH4	0.16	1.81
CH4	0.23	2.55
CH4	0.34	3.19
CH4	0.50	3.93
CH4	0.65	4.70
CH4	0.84	5.40
CH4	1.01	5.95
CH4	1.18	6.63
CH4	1.33	7.23
CH4	1.49	7.63
CH4	1.67	8.12
CH4	1.83	8.47
CH4	2.00	8.82

Method/Apparatus/Procedure:
   A pressure decay method was used described in Ref. 1.

Source and Purity of Materials:
   PAEK-12F synthesized (Ref. 2), density 1.401 g/cm³, glass transition temperature 458 K.

Estimated Errors:

   Temperature: No information given.

References:

   ¹W. J. Koros and D. R. Paul, J. Polym. Sci., Polym. Phys. Ed. 14, 1903 (1976).
   ²G. L. Tulios, P. E. Cassidy, and A. K. St. Clair, Proc. ACS, Div. Polym. Materials 60, 310 (1989).