IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Ethyl Cellulose (EC)
Components:
   (1) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (2) Ethyl Cellulose (EC); ; [9004-57-3]  NIST Chemistry WebBook for detail
Original Measurements:
   A.H. Chan, W.J. Koros and D.R. Paul, J. Membr. Sci. 3, 117 (1978).

 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 carbon dioxide in ethyl cellulose at 308 K
Henry's law constant, K [cm3(STP) cm-3 atm -1]Langmuir's parameter, CH [cm3(STP) cm-3]Affinity Coefficient b [atm-1]
1.1894.8470.365
Sorption isotherm of carbon dioxide in ethyl cellulose at 308 K (The original data were represented graphically)
Pressure [MPa]Sorption [(V*1(STP)/V*2)]
0.153.44
0.245.09
0.377.44
0.6611.50
1.3219.76
1.9727.19
2.3532.29
2.6235.59
 Method/Apparatus/Procedure:
   Sorption apparatus used was described in Ref. 1.

 Source and Purity of Materials:
   EC: Dow Chemical Co., presumed ethoxy groups content 48.6 %, glass transition temperature in the region 393—398 K.

 Estimated Errors:

   Temperature: No information given.

 References:
   1W. J. Koros, and D. R. Paul, J. Polym. Sci., Polym. Phys. Ed. 14, 1903 (1976).