IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Methane and Polycarbonate (PC)

Components:
   (1) Polycarbonate (PC); ; [24936-68-3]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide with Methane; CO2, CH4; [124-38-9, 74-82-8]  NIST Chemistry WebBook for detail

Original Measurements:
   E. Sada, H. Kumazawa, H. Yakushiji, Y. Bamba, K. Sakata and S.-T. Wang, Ind. Eng. Chem., Res. 26, 433-438 (1987).

Variables:
   Temperature = 293 K - 313 K
   Pressure = 0.2-3.0 MPa

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
T/K	Chemical Name	Henry's law constant, K [cm³(STP)/cm³ atm]	Langmuir's parameter, C_H [cm³(STP) cm^-3]	Affinity Coefficient b [atm^-1]
293	CO2	0.911	23.1	0.264
303	CO2	0.804	19.9	0.197
313	CO2	0.702	16.0	0.124
293	CH4	0.335	6.40	0.157
303	CH4	0.308	5.62	0.120
313	CH4	0.280	4.72	0.0872

Method/Apparatus/Procedure:
   Equilibrium sorption was measured by the pressure decay method in the cell similar to one described in Ref. (1). The pressure changes in the cell were continuously measured by a pressure transducer.

Source and Purity of Materials:
   PC films were provided by Teijin Co.

Estimated Errors:

References:
   ¹ Koros, W.J.; Paul, D.R.; Rocha, A.A. J. Polym. Sci., Polym. Phys. Ed., 1976, 14, 687.