IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Sulfur dioxide with Poly(vinyltrimethyl silane) (PVTMS)
Components:
   (1) Poly(vinyltrimethyl silane) (PVTMS); ; [25036-32-2]  NIST Chemistry WebBook for detail
   (2) Sulfur dioxide; SO2; [25036-53-7]  NIST Chemistry WebBook for detail
Original Measurements:
   Yu. Yampol'skii, V.V. Volkov, N.E. Kaliuzhnyi, and S.G. Durgaryan, Vysokomol, Soedin., Ser. A 26, 1640 (1984).

 Variables:
   Temperature = 298 K
   Pressure = 0-100 kPa

 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 fo SO2 in PVTMS at 298 K
Henry's law constant, K [mol cm-3(STP) Pa-1]Concentration C1 [mmol/cm3]Affinity Coefficient b [kPa-1]
2.01090.450.01
Sorption isotherm of sulfur dioxide in PVTMS at 298 K. (The original data were represented graphically)
Pressure [kPa]Sorption [mmol/cm3]
8.680.06
13.280.09
19.410.12
26.390.16
44.280.24
57.400.28
58.250.29
67.790.33
72.900.35
81.250.38
91.310.42
 Method/Apparatus/Procedure:
   Sorption was studied using a McBain balance with quartz spring. The procedure has been described in Ref. 1.

 Source and Purity of Materials:
   SO2: traces of air were removed from the gas prior to use.
PVTMS films: recast after dissolving gas separation PVTMS membrane (NPO Plastmassy) is methylbenzene.

 Estimated Errors:

   Temperature: No information given.

 References:
   1V. V. Volkov, N. S. Nametkin, and S. G. Durgaryan, Vysokomol. Soedin., Ser. A 21, 920 (1979).