IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with Ethanol and Water

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Components:
   (1) Ethanol; C2H6O; [64-17-5]  NIST Chemistry WebBook for detail
   (2) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Rezanova, E. N.; A. M. Toikka, and Markuzin, N. P.; Zh. Prikl. Khim. (S-Peterburg) 66, 359 (1993).

Variables:
   Temperature = 293 K to 333 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)
  

Table 1. Mutual solubility of nitromethane, ethanol and water

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2
30.00	303.15	0.1180	0.0000	0.0380	0.0000
30.00	303.15	0.2228	0.2245	0.0931	0.1243
30.00	303.15	0.2976	0.2453	0.1371	0.1497
30.00	303.15	0.3390	0.2436	0.1633	0.1555
30.00	303.15	0.4350	0.2356	0.2325	0.1676
30.00	303.15	0.4736	0.2274	0.2649	0.1685
30.00	303.15	0.5729	0.2052	0.3589	0.1703
30.00	303.15	0.6317	0.1834	0.4208	0.1619
30.00	303.15	0.8266	0.0946	0.6782	0.1028
30.00	303.15	0.9713	0.0000	0.9090	0.0000
40.00	313.15	0.1293	0.0000	0.0420	0.0000
40.0	313.15	0.2427	0.1850	0.1000	0.1010
40.0	313.15	0.2747	0.1968	0.1181	0.1121
40.0	313.15	0.2976	0.1979	0.1312	0.1156
40.0	313.15	0.3244	0.2018	0.1477	0.1217
40.0	313.15	0.3791	0.2035	0.1838	0.1307
40.0	313.15	0.4440	0.1981	0.2314	0.1368
40.0	313.15	0.5210	0.1895	0.2972	0.1432
40.0	313.15	0.6089	0.1758	0.3876	0.1483
40.0	313.15	0.6997	0.1470	0.4950	0.1378
40.0	313.15	0.7815	0.1132	0.6066	0.1164
40.0	313.15	0.8672	0.0672	0.7359	0.0755
40.0	313.15	0.9170	0.0336	0.8125	0.0395
40.0	313.15	0.9665	0.0000	0.8950	0.0000
50.0	323.2	0.1431	0.0000	0.0470	0.0000
50.0	323.2	0.2419	0.1340	0.0955	0.0701
50.0	323.2	0.3277	0.1641	0.1446	0.0959
50.0	323.2	0.3655	0.1682	0.1686	0.1028
50.0	323.2	0.4100	0.1674	0.1987	0.1075
50.0	323.2	0.4811	0.1614	0.2524	0.1122
50.0	323.2	0.5960	0.1501	0.3602	0.1202
50.0	323.2	0.7244	0.1204	0.5139	0.1132
50.0	323.2	0.7940	0.0945	0.6122	0.0965
50.0	323.2	0.8429	0.0693	0.6841	0.0745
50.0	323.2	0.9074	0.0330	0.7869	0.0379
60.00	333.15	0.9578	0.0000	0.8700	0.0000
60.00	333.15	0.1540	0.0000	0.0510	0.0000
60.00	333.15	0.2857	0.1132	0.1156	0.0607
60.00	333.15	0.3900	0.1339	0.1789	0.0814
60.00	333.15	0.4885	0.1344	0.2513	0.0916
60.00	333.15	0.6399	0.1210	0.3974	0.0996
60.00	333.15	0.7740	0.0868	0.5688	0.0845
60.00	333.15	0.8862	0.0363	0.7404	0.0402
60.00	333.15	0.9501	0.0000	0.8490	0.0000

Table 2. Compositions of coexisting liquid phases

t/°C	T/K	Mass Fraction w1 (compiler)	Mass Fraction w2 (compiler)	Mole Fraction x1	Mole Fraction x2	Comment(s)
30.00	303.15	0.9392	0.0223	0.8544	0.0269	nitromethane-rich phase
30.00	303.15	0.9174	0.0391	0.8216	0.0464	nitromethane-rich phase
30.00	303.15	0.8918	0.0561	0.7804	0.0650	nitromethane-rich phase
30.00	303.15	0.8746	0.0661	0.7519	0.0753	nitromethane-rich phase
30.00	303.15	0.8220	0.0981	0.6723	0.1063	nitromethane-rich phase
30.00	303.15	0.7844	0.1173	0.6162	0.1221	nitromethane-rich phase
30.00	303.15	0.7395	0.1329	0.5540	0.1381	nitromethane-rich phase
40.00	313.15	0.9247	0.0285	0.8248	0.0337	nitromethane-rich phase
40.0	313.15	0.9017	0.0440	0.7884	0.0510	nitromethane-rich phase
40.0	313.15	0.8696	0.0647	0.7384	0.0728	nitromethane-rich phase
40.0	313.15	0.8446	0.0799	0.7003	0.0878	nitromethane-rich phase
40.0	313.15	0.7956	0.1058	0.6265	0.1104	nitromethane-rich phase
40.0	313.15	0.7557	0.1238	0.5691	0.1235	nitromethane-rich phase
50.00	323.15	0.9114	0.0300	0.7927	0.0346	nitromethane-rich phase
50.00	323.15	0.8774	0.0510	0.7388	0.0569	nitromethane-rich phase
50.00	323.15	0.8352	0.0745	0.6736	0.0796	nitromethane-rich phase
50.00	323.15	0.7976	0.0923	0.6169	0.0946	nitromethane-rich phase
50.00	323.15	0.7147	0.1229	0.5006	0.1141	nitromethane-rich phase
60.0	333.15	0.8954	0.0321	0.7566	0.0359	nitromethane-rich phase
60.0	333.15	0.8446	0.0570	0.6739	0.0603	nitromethane-rich phase
60.0	333.15	0.7922	0.0806	0.5957	0.0803	nitromethane-rich phase
60.0	333.15	0.7252	0.1048	0.5036	0.0964	nitromethane-rich phase
30.00	303.15	0.1221	0.0683	0.0413	0.0306	water-rich phase
30.00	303.15	0.1267	0.1056	0.0442	0.0488	water-rich phase
30.00	303.15	0.1489	0.1573	0.0550	0.0770	water-rich phase
30.00	303.15	0.1683	0.1822	0.0645	0.0925	water-rich phase
30.00	303.15	0.2085	0.2183	0.0855	0.1186	water-rich phase
30.00	303.15	0.2712	0.2401	0.1208	0.1417	water-rich phase
30.00	303.15	0.3602	0.2448	0.1781	0.1604	water-rich phase
40.00	313.15	0.1382	0.0596	0.0471	0.0269	water-rich phase
40.0	313.15	0.1499	0.0948	0.0529	0.0443	water-rich phase
40.0	313.15	0.1721	0.1436	0.0642	0.0710	water-rich phase
40.0	313.15	0.2009	0.1661	0.0783	0.0858	water-rich phase
40.0	313.15	0.2879	0.1985	0.1257	0.1148	water-rich phase
40.0	313.15	0.3799	0.2044	0.1845	0.1315	water-rich phase
50.00	323.15	0.1595	0.0521	0.0550	0.0238	water-rich phase
50.00	323.15	0.1838	0.0777	0.0659	0.0369	water-rich phase
50.00	323.15	0.1966	0.1300	0.0742	0.0650	water-rich phase
50.00	323.15	0.2510	0.1398	0.1004	0.0741	water-rich phase
50.00	323.15	0.3683	0.1680	0.1704	0.1030	water-rich phase
60.00	333.15	0.1814	0.0476	0.0635	0.0221	water-rich phase
60.00	333.15	0.2049	0.0787	0.0749	0.0381	water-rich phase
60.00	333.15	0.2849	0.1133	0.1152	0.0607	water-rich phase
60.00	333.15	0.3045	0.1226	0.1265	0.0675	water-rich phase

Method/Apparatus/Procedure:
   Two methods were used. The solubility curves were determined by the titration method. The analytical method was used, samples being withdrawn from coexisting liquid phases at equilibrium for analysis by gas chromatography. No details were reported.


   Composition: ± 0.002 mole fraction Source and Purity of Materials:
   (1) Source not specified, pure grade; dried over CaCl₂ and repeatedly distilled in a laboratory packed column of 20 theoretical plates.
   (2) Source not specified, pure grade; distilled.
   (3) Doubly distilled.

Estimated Errors:
   Solubility: ± 0.0005 mole fraction
   Temperature: control to ± 0.01 K.

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