IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1-Heptene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Heptene; C7H14; [592-76-7]  NIST Chemistry WebBook for detail
Original Measurements:
   Natarajan, G.S.; Venkatachalam, K.A., J. Chem. Eng. Data 1972, 17, 328-9.

 Variables:
   Temperature = 20-30 °C

 Prepared By:
   M.C. Haulait-Pirson, G.T. Hefter

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of 1-heptene in 0.001 mol L-1 HNO3 solution
t/°C103 * g1/100 g solution (compiler)g1/100 g soln. Note (compiler)106 * Mole Fraction x1 (compiler)104 * n1/V2 [mol/L]
203.1b5.73.16 ± 0.13 (a)
252.8b5.12.81 ± 0.12 (a)
302.4b4.42.45 ± 0.15 (a)
 Notes:
   Table 1    Compiler's note: Although the data have not been measured in pure water the low concentration of the added acid is unlikely to cause the olefin solubility to differ markedly from that in pure water. Further solubility data are given in the paper for 0.05 and 0.1 mol L-1 HCl.
   Table 1  a  Uncertainties stated to be "standard deviations from means".
   Table 1  b  Assuming a solution of 1.00 g mL-1 at all temperatures.

 Method/Apparatus/Procedure:
   15 mL of the aqueous medium was equilibrated with 1 mL of (1) by mechanical shaking in a thermostatted glass burette. After settling (judged visually), 5 mL of the aqueous layer was withdrawn and the olefin content determined by titration with bromine using standard procedures.

 Source and Purity of Materials:
   (1) Matheson, Coleman and Bell; 99%.
   (2) Not specified.

 Estimated Errors:
   Solubility: see table above.
   Temperature: ± 0.05 K