IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with Naphthalene and Water

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Components:
   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Sazonov, V. P. and Chernysheva, M. F.; Zh. Prikl. Khim. (Leningrad) 52, 2710 (1979).

Variables:
   Temperature = 293 K to 313 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)
  

Compositions of coexisting phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)	Comment(s)
20.0	293.2	0.940	0.041	0.918	0.019	nitromethane-rich phase
20.0	293.2	0.908	0.074	0.904	0.035	nitromethane-rich phase
20.0	293.2	0.878	0.106	0.893	0.051	nitromethane-rich phase
20.0	293.2	0.879	0.110(b)	0.907	0.054b	nitromethane-rich phase
20.0	293.2	-	-	-	-	nitromethane-rich phase
23.0	295.2	0.946	0.034	0.918	0.016	nitromethane-rich phase
23.0	295.2	0.912	0.070	0.906	0.033	nitromethane-rich phase
23.0	295.2	0.862	0.122	0.885	0.059	nitromethane-rich phase
23.0	295.2	0.859	0.132(b)	0.899	0.065b	nitromethane-rich phase
23.0	295.2	-	-	-	-	nitromethane-rich phase
40.0	313.2	0.925	0.039	0.868	0.017	nitromethane-rich phase
40.0	313.2	0.889	0.075	0.849	0.034	nitromethane-rich phase
40.0	313.2	0.835	0.136	0.837	0.065	nitromethane-rich phase
40.0	313.2	0.767	0.209	0.809	0.105	nitromethane-rich phase
40.0	313.2	0.675	0.307	0.765	0.166	nitromethane-rich phase
40.0	313.2	0.669	0.323(b)	0.787	0.181b	nitromethane-rich phase
40.0	313.2	-	-	-	-	nitromethane-rich phase
20.0	293.2	0.103	0.0001	0.033	0.0001	water-rich phase
20.0	293.2	0.099	0.001	0.031	0.001	water-rich phase
20.0	293.2	0.094	0.001(a)	0.029	0.001a	water-rich phase
20.0	293.2	-	-	-	-	water-rich phase
20.0	293.2	0.056	0.001(b)	0.018	0.0001b	water-rich phase
23.0	295.2	0.107	0.0001	0.034	0.0001	water-rich phase
23.0	295.2	0.101	0.001	0.031	0.001	water-rich phase
23.0	295.2	0.096	0.001(a)	0.030	0.001a	water-rich phase
23.0	295.2	-	-	-	-	water-rich phase
23.0	295.2	0.053	0.001(b)	0,116	0.0001b	water-rich phase
40.0	313.2	0.131	0.0001	0.043	0.0001	water-rich phase
40.0	313.2	0.128	0.001	0.042	0.001	water-rich phase
40.0	313.2	0.126	0.001	0.041	0.001	water-rich phase
40.0	313.2	0.123	0.002	0.040	0.002	water-rich phase
40.0	313.2	0.121	0.002(a)	0.039	0.002a	water-rich phase
40.0	313.2	-	-	-	-	water-rich phase
40.0	313.2	0.050	0.001(b)	0.015	0.001b	water-rich phase

Notes:
   Table 1  ^a  Equilibrium of two liquid phases with the solid phase. 
   Table 1  ^b  Equilibrium of liquid phase with the solid phase.

Method/Apparatus/Procedure:
   The analytical method was used. Thermostated glass vessels (15 mL capacity) were agitated with the aid of a sealed magnetic stirrer. Mixtures were held 1.5 to 2 hrs with periodic stirring, and samples of liquid phases were taken with a MSh-10 microsyringe through a rubber stopper. Compositions of equilibrium liquid phases were determined by gas chromatography.

Source and Purity of Materials:
   (1) Source not specified, pure grade reagent; dried and twice distilled in packed column of 20 theoretical plates; no impurities detectable by GLC.
   (2) Source not specified, analytical purity; purified recrystallization; m. p. = 80.2 °C.
   (3) Twice distilled.

Estimated Errors:

   Temperature: control to ± 0.02 K.

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Last updated: February 18, 2015 (Created: August 17, 2007)