IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: n-Butane with 2-Methylpropane, Propane and Polystyrene (PS)
Components:
   (1) Polystyrene (PS); ; [9003-53-6]  NIST Chemistry WebBook for detail
   (2) n-Butane with 2-Methylpropane, Propane; C4H10, C4H10, C3Hg; [106-97-8, 75-28-5, 74-98-6]  NIST Chemistry WebBook for detail
Original Measurements:
   Y. Iwai, M. Ohzono and Y. Arai, Chem. Eng. Commun. 34, 225 (1985).

 Variables:
   Temperature = 423 K - 498 K

 Prepared By:
   Yu. P. Yampol'skii

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
Values of weight fraction Henry’s constants/MPa for hydrocarbons in molten polystyrene. The experienced data follow the curves calculated by the UNIFAC-FV model. (The original data were represented graphically)
T/KChemical NameMolality m1
423.2n-Butane35.96
448.2n-Butane42.33
473.2n-Butane51.81
498.2n-Butane61.53
423.22-Methylpropane47.49
448.22-Methylpropane56.46
473.22-Methylpropane62.58
498.22-Methylpropane74.33
423.2Propane78.79
448.2Propane100.53
473.2Propane123.04
498.2Propane137.76
 Method/Apparatus/Procedure:
   A gas chromatographic method used for the determination of weight fraction Henry's constants and was similar to those described in Refs. I and 2. PS was coated on Chromosorb W (AW DMSC 60/SO). Helium was used as a carrier gas.

 Source and Purity of Materials:


Estimated Errors:

   Temperature: No information given.

 References:
   1 D, D. Liu and J. M. Prausnitz, md. Eng. Chem. Fundam. 15, 330 (1976).
   2 M.Ohzono, Y. Iwai, snd Y. Arai, Kagaku Kogaku Ronbunuhu, 10, 536 (1984).