Home
Introduction
Search Menu
IUPAC Series (PDF)
Reference
Version History
About the Project
Disclaimer
Contact Us
Acknowledgements
IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with Heptane
Components:
(1) Nitromethane; CH3NO2; [75-52-5]
NIST Chemistry WebBook
for detail
(2) Heptane; C7H16; [142-82-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Rezanova, E.N.; Tojkka, A.M.; Markuzin, N.P., Vestn. Leningr. Univ., Fiz., Khim. 18, 53-6 (1991).
Variables:
Temperature = 298 K to 333 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Mutual solubility of nitromethane (1) and heptane (2)
t/°C
T/K
10
2
* Mass Fraction w
1
(compiler)
Mole Fraction x
1
Comment(s)
25.00
298.15
2.5
0.041
Hydrocarbon-rich phase
25.00
298.15
97.9
0.987
Nitromethane-rich phase
30.00
303.15
3.2
0.051
Hydrocarbon-rich phase
30.00
303.15
97.4
0.984
Nitromethane-rich phase
40.00
313.15
4.0
0.064
Hydrocarbon-rich phase
40.00
313.15
97.1
0.982
Nitromethane-rich phase
50.00
323.15
5.3
0.084
Hydrocarbon-rich phase
50.00
323.15
96.1
0.976
Nitromethane-rich phase
60.00
333.15
6.57
0.102
Hydrocarbon-rich phase
60.00
333.15
95.5
0.972
Nitromethane-rich phase
Method/Apparatus/Procedure:
The titration method was used. A 100 mL glass flask and a microburette with scale divisions of 0.01 mL were used. The solution was mixed by a magnetic stirrer. The titration was continued until the second phase appeared. The amount of added substance was obtained by weighing the mixture before and after the titration.
Source and Purity of Materials:
(1) Source not specified; pure grade reagent; dried over CaCl
2
and repeatedly distilled in a laboratory packed column of 20 theoretical plates; b. p. = 101.20 °C,
n
(20 °C, D) = 1.3820.
(2) Source not specified; CP reagent; distilled; b. p. = 98.42 °C,
n
(20 °C, D) = 1.3877.
Estimated Errors:
Solubility: ± 0.002 mole fraction.
Temperature: ± 0.02 K