IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ethene with Sulfuric acid, Sodium sulfate and Water
Components:
   (1) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (3) Sulfuric acid; H2SO4; [7664-93-9]  NIST Chemistry WebBook for detail
   (4) Sodium sulfate; Na2SO4; [7757-82-6]  NIST Chemistry WebBook for detail
Original Measurements:
   Kobe, K. A.; Kenton, F. H., Ind. Eng. Chem., Anal. Ed. 1938, 10, 76-77.

 Variables:
   Temperature = 298.15 K
   Pressure = 101.325 kPa

 Prepared By:
   P.L. Long, H.L. Clever

 Experimental Remarks:
   The solvent is a mixture of 800 g H2O
               200 g Na2SO4 (anhydrous)
               40 ml H2SO4 (Conc., 36 normal)
Thus the molality of the solution is:
               m2/mol kg–1 = 0.90 (H2SO4)
               m3/mol kg –1 = 1.76 (Na2SO4)



Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   

t/°CT/KOstwald coefficient L [L/cm3 cm–3]α [α/cm3 (STP)cm–3 atm–1]Volume [Vcm3]Volume NoteVolume [ν1/cm]
25.0298.15––49.54Solvent volume1.19
25.0298.150.0240.02249.54Solvent volume1.19
 Method/Apparatus/Procedure:
   The apparatus is described in detail in an earlier paper1. The apparatus consists of a gas buret, a pressure compensator, and a 200 cm3 absorption bulb and mercury leveling bulb. The absorption bulb is attached to a shaking mechanism.

The solvent and the gas are placed in the absorption bulb. The bulb is shaken until equilibrium is reached. The remaining gas is returned to the buret. The difference in the final and initial volumes is taken as the volume of gas absorbed.

Source and Purity of Materials:
   (1) Ethene. Source not given. Purity stated to be 99+ per cent.
   (2, 3) Sulfuric acid and sodium sulfate. Sources not given. Analytical grade.
   (4) Water. Distilled.

 Estimated Errors:
   Solubility: δα/cm3 = ± 0.001 (authors)

 References:
   1. Kobe, K. A.; Williams, J. S., Ind. Eng. Chem., Anal. Ed. 1935, 7, 37.