IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ethene with Silver nitrate 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) Silver nitrate; AgNO3; [7761-88-8]  NIST Chemistry WebBook for detail
Original Measurements:
   Clever, H. L.; Baker, E. R.; Hale, W. R., J. Chem. Eng. Data 1970, 15, 411-3.

 Variables:
   Temperature = 303.15 K
   Pressure = 95.75 kPa
   Concentration = 0 - 0.0338 (c2/mol dm-3)

 Prepared By:
   H.L. Clever

 Experimental Remarks:
   Henry's constant for pure water is C2H4(ag, c1 ⇔ C2H4 (g, p1)       KH = (p1/kPa)/(c1/mol dm–3) = 23130

The authors combined the data above with other information to calculate the silver ion + ethene association constant

Ag+ (aq) + C2H4(ag) ⇔ C2H4-Ag+(aq)       K1 = 76.

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
Table 1. Ethene Solubility at 0.945 atm (95.75 kPa)
t/°CT/KTemp Note103 * Concentration C1 [c1/mol dm–3]Concentration C2 [mol dm–3]Concentration NoteRemark(s)
30.0303.15a4.17 (a)0Silver Nitrate92.8 ± 0.5(5) cm3 (STP) dm−3
30.0303.15a4.46 (a)0.0011Silver Nitrate99.2 ± 0.2(2) cm3 (STP) dm−3
30.0303.15a4.68 (a)0.0028Silver Nitrate104 ± 0.0(2) cm3 (STP) dm−3
30.0303.15a5.35 (a)0.0056Silver Nitrate119 ± 2.0(2) cm3 (STP) dm−3
30.0303.15a6.70 (a)0.0113Silver Nitrate149 ± 2.0(2) cm3 (STP) dm−3
30.0303.15a8.99 (a)0.0226Silver Nitrate200 ± 2.0(2) cm3 (STP) dm−3
30.0303.15a10.88 (a)0.0338Silver Nitrate242(1) cm3 (STP) dm−3
 Notes:
   a  Calculated by the compiler. Molar volume STP, V/cm3 mol–1 = 22,246 The numbers in ( ) are the number of determinations.

 Method/Apparatus/Procedure:
   The apparatus and method were similar to those described by Markham and Kobe1.

Aqueous solution of Silver nitrate were prepared, degassed by refluxing under vacuum, and transferred to the solubility apparatus without contact with atmospheric gases. The solubility of ethene at a partial pressure of 0.945 atm (95.75 kPa) was measured by observing the volume of gas, saturated with water vapor, absorbed by an 88.5 cm3 sample of degassed solution at 30.0 °C and a total pressure of 1 atm (101.3 kPa).

Source and Purity of Materials:
   (1) Ethene. Matheson Co., Inc. Stated to have 99.5 % minimum purity.
   (2) Silver nitrate. Reagent grade.
   (3) Water. Distilled.

 Estimated Errors:
   Solubility: δc1/c1 = ± 0.01
   Temperature: δT/K = ± 0.05

 References:
   1. Markham, A.E.; Kobe, K. A., J. Am. Chem. Soc. 1941, 63, 449.