IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1-Propanol with heptane and Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Proponal (n-propanol, propyl alcohol, n-propyl alcohol); C3H8O; [71-23-8]  NIST Chemistry WebBook for detail
   (3) Heptane (n-heptane); C7H16; [142-82-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Rabinovich, I.B.; Pugachevich, P.P., Zh. Fiz. Khim. 48, 2525 (1974).

 Variables:
   Temperature = 293 K

 Prepared By:
   A. Skrzecz

 Experimental Remarks:
   The authors described both branches of the solubility curve by the following equations obtained by the least-squares method.
x'1=0.6788-0.1927x'3-49.0x'23

x"1=0.0896+8.335x"3-3689.0x"23


 Experimental Data:   (Notes on the Nomenclature)
  
Compositions of coexisting phases
t/°CT/KMass Fraction w1 (compiler) Mass Fraction w2 (compiler)Mole Fraction x1Mole Fraction x2Comment(s)
20.0293.150.1100.8880.170.82hydrocarbon-rich phase
20.0293.150.1580.8340.230.73hydrocarbon-rich phase
20.0293.150.1900.7990.270.68hydrocarbon-rich phase
20.0293.150.2390.7500.330.62hydrocarbon-rich phase
20.0293.150.2940.6920.390.55hydrocarbon-rich phase
20.0293.150.3510.0040.140.001water-rich phase
20.0293.150.5230.0650.270.02water-rich phase
20.0293.150.5640.1140.330.04water-rich phase
20.0293.150.5920.1730.400.07water-rich phase
20.0293.150.5800.2420.440.11water-rich phase
 Method/Apparatus/Procedure:
   The method is described in Ref. 1. Data are reported at the boiling point at 101.3 kPa together with liquid-liquid-vapor equilibrium data for the system.

 Source and Purity of Materials:
   (1) Source not specified.
   (2) Source not specified.
   (3) Source not specified.

 Estimated Errors:
   Solubility: Not reported.
   Temperature: Not reported.

 References:
   1 V. A. Koshelkov, T. G. Pavlenko, V. S. Timofeev, and L. A. Serafimov, Uch. Zap. Mosk. Inst. Tonkoi Khim. Tekhnol. 1, 44 (1971).