IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 2-Nitropropane with Benzene
Components:
   (1) 2-Nitropropane; C3H7NO2 ; [79-46-9]  NIST Chemistry WebBook for detail
   (2) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail
Original Measurements:
   Clever, H.L.; Pirkle, Q.R. Jr.; Allen, B.J. Jr.; Derrick, M.E., J. Chem. Eng. Data 17, 31-4 (1972).

 Variables:
   Temperature = 177 K to 279 K

 Prepared By:
   V. P. Sazonov

 Experimental Remarks:
   No region of liquid-liquid immiscibility was observed. A full solid-liquid phase diagram is presented.

A eutectic was reported at (-98 °C) at x1 = 0.93 (100 w1 = 93.8, compiler).

Experimental Data:   (Notes on the Nomenclature)
  

Solubility of 2-nitropropane (1) and benzene (2)
t/°CT/K102 * Mass Fraction w1Mole Fraction x1 (compiler)
-96.11177.04 93.30.924
-94.97178.18 96.70.962
-91.50181.65100.01.000
-76.52196.63 86.10.845
-39.66233.49 61.30.581
-30.13243.02 53.00.497
-14.84258.31 36.50.335
-9.89263.26 27.40.249
-5.72267.43 18.40.165
-3.92269.23 14.50.129
-0.80272.35 10.10.09
0.31273.46 8.140.0721
2.00275.15 6.260.0553
3.06276.21 4.240.0374
5.45278.60 0.00.0
 Method/Apparatus/Procedure:
   Cooling curves were run on a Precision Scientific Co. freezing point apparatus equipped with a Leeds and Northrup Co. Mueller bridge and platinum resistance thermometer. The minimum sample size was 50 mL. Usually a (1) and (2) solution was prepared, a cooling curve taken, a known amount of (1) added, and a second cooling curve taken. The procedure was then repeated with a new sample. Only ordinary precautions were taken to exclude water from the system. Either dry ice-acetone or liquid nitrogen was used as the coolant around the evacuated Dewar flask holding the sample.

 Source and Purity of Materials:
   (1) Eastman; practical grade; distilled at 60°C/13.3 kPa.
   (2) Fisher ACS certified.

 Estimated Errors:
   Solubility: Not specified.
   Temperature: Not specified.