IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Helium with Nitrogen, Oxygen, Carbon dioxide, Methane and Polypyrrolone
Components:
   (1) Helium with Nitrogen, Oxygen, Carbon dioxide, Methane; He, N2, O2, CO2, CH4; [7440-59-7, 7727-37-9, 7782-44-7, 124-38-9, 74-82-8]  NIST Chemistry WebBook for detail
   (2) Polypyrrolone; ; [12634-94-7]  NIST Chemistry WebBook for detail
Original Measurements:
   D.R.B. Walker and W.J. Koros, J. Membr. Sci., 55, 99-117 (1991).

 Variables:
   Temperature = 308 K
   Pressure = 0.3-1.0 MPa

 Prepared By:
   Yu. P. Yampol'skii

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
Solubility coefficient S /cm3 (STP)/cm3 atm
Chemical NameKeunen coefficient, S
He0.091
N20.72 ± 0.08
O21.04
CO24.41
CH41.7
 Method/Apparatus/Procedure:
   Pressure decay method and apparatus was used.

 Source and Purity of Materials:
   The polymer was synthesized according to ref. (1). It had a density 1.405 g/cc. All the gases were Linde UHP (purity more than 99.97 %).

 Estimated Errors:


References:
   1 Foster, R.T.; Marvel C.S. J. Polym. Sci., A, 1965, 3, 417.