IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with 1,2-Ethanediol and 1-Octanol

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Components:
   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) 1,2-Ethanediol; C2H6O2 ; [107-21-1]  NIST Chemistry WebBook for detail
   (3) 1-Octanol; C8H18O; [111-87-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Zhuravleva, I. K.; Zh. Obshch. Khim. 55, 1685-9 (1985).

Variables:
   Temperature = 276 K to 313 K

Prepared By:
   V. P. Sazonov

Experimental Remarks:

   The solubility temperatures of liquid phases were determined in ternary mixtures with a constant mass relationship of (2) and (3), respectively, 15.0:85.0, 30.0:70.0, 45.0:55.0, 60.0:40.0, 75.0:25.0, and 90.0:10.0.

The compositions of two coexistent liquid phases at 22 °C are also presented in graphical form.

Experimental Data:   (Notes on the Nomenclature)
  

Solubility temperatures of the liquid phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)
11.0	284.2	0.140	0.129	0.230	0.208
14.5	287.7	0.940	0.009	0.966	0.009
18.5	291.7	0.188	0.122	0.298	0.190
20.0	293.2	0.910	0.014	0.949	0.014
25.0	298.2	0.898	0.015	0.942	0.015
25.5	298.7	0.240	0.114	0.367	0.171
30.0	303.2	0.277	0.109	0.412	0.159
33.0	306.2	0.334	0.100	0.479	0.141
33.0	306.2	0.846	0.023	0.910	0.024
34.5	307.7	0.392	0.091	0.541	0.124
35.0	308.2	0.817	0.028	0.891	0.030
37.5	310.7	0.774	0.034	0.863	0.037
38.0	311.2	0.461	0.081	0.610	0.106
40.0	313.2	0.553	0.067	0.694	0.083
40.0	313.2	0.702	0.045	0.812	0.051
40.0	313.2	0.665	0.050	0.784	0.058
40.0	313.2	0.606	0.059	0.738	0.071
2.5	275.7	0.142	0.257	0.210	0.374
6.0	279.2	0.950	0.015	0.968	0.015
13.0	286.2	0.935	0.019	0.958	0.020
13.0	286.2	0.180	0.246	0.261	0.350
17.5	290.7	0.206	0.238	0.294	0.334
18.0	291.2	0.910	0.027	0.942	0.027
20.0	293.2	0.895	0.031	0.932	0.032
21.5	294.7	0.239	0.228	0.335	0.315
26.0	299.2	0.300	0.210	0.408	0.280
29.0	302.2	0.825	0.052	0.883	0.055
30.0	303.2	0.373	0.188	0.488	0.242
31.5	304.7	0.467	0.160	0.584	0.197
32.0	305.2	0.770	0.069	0.843	0.074
32.0	305.2	0.530	0.141	0.644	0.169
33.0	306.2	0.602	0.119	0.708	0.138
33.5	306.7	0.700	0.090	0.789	0.100
3.0	276.2	0.200	0.360	0.264	0.466
7.0	280.2	0.935	0.029	0.954	0.029
11.0	284.2	0.234	0.345	0.304	0.440
16.0	289.2	0.270	0.328	0.346	0.410
19.5	292.7	0.316	0.308	0.397	0.381
21.5	294.7	0.830	0.076	0.875	0.079
22.5	295.7	0.392	0.274	0.479	0.329
23.5	296.7	0.791	0.094	0.844	0.098
24.5	297.7	0.392	0.274	0.479	0.329
25.0	298.2	0.500	0.225	0.588	0.260
25.0	298.2	0.739	0.117	0.802	0.125
25.5	298.7	0.670	0.149	0.744	0.162
25.5	298.7	0.565	0.196	0.650	0.222
25.5	298.7	0.640	0.162	0.717	0.179
26.0	299.2	0.595	0.182	0.677	0.204
5.5	278.7	0.219	0.489	0.265	0.558
11.5	284.7	0.940	0.036	0.953	0.036
14.5	287.7	0.304	0.418	0.360	0.486
15.0	288.7	0.905	0.057	0.925	0.057
17.5	290.7	0.850	0.090	0.879	0.092
17.5	290.7	0.350	0.390	0.409	0.448
18.0	291.2	0.820	0.108	0.854	0.111
19.5	292.7	0.401	0.359	0.463	0.408
20.0	293.2	0.763	0.142	0.806	0.147
20.5	293.7	0.445	0.333	0.508	0.374
21.0	294.2	0.520	0.288	0.582	0.317
21.0	294.2	0.695	0.183	0.746	0.193
21.5	294.7	0.650	0.210	0.705	0.224
21.5	294.7	0.607	0.236	0.665	0.254
5.0	278.2	0.250	0.563	0.281	0.621
10.0	283.2	0.284	0.537	0.317	0.589
16.5	289.7	0.351	0.487	0.387	0.529
18.5	291.7	0.930	0.053	0.940	0.052
19.0	292.2	0.414	0.439	0.453	0.472
19.5	292.7	0.456	0.408	0.495	0.436
20.4	293.6	0.924	0.057	0.934	0.057
20.5	293.7	0.540	0.345	0.579	0.364
22.5	295.7	0.585	0.311	0.623	0.325
23.1	296.3	0.901	0.074	0.914	0.074
23.5	296.7	0.638	0.271	0.673	0.282
24.0	297.2	0.677	0.242	0.710	0.250
26.0	299.2	0.750	0.188	0.778	0.192
26.5	299.7	0.865	0.101	0.883	0.101
27.0	300.2	0.805	0.146	0.830	0.148
4.0	277.2	0.223	0.699	0.235	0.726
9.5	282.7	0.274	0.651	0.288	0.675
14.0	287.2	0.307	0.624	0.322	0.644
18.5	291.7	0.925	0.068	0.930	0.067
19.0	292.2	0.375	0.563	0.392	0.578
22.0	295.2	0.430	0.513	0.447	0.525
22.5	295.7	0.915	0.077	0.920	0.076
24.0	297.2	0.486	0.462	0.504	0.471
24.5	297.7	0.900	0.090	0.906	0.089
26.0	299.2	0.574	0.383	0.591	0.388
27.0	300.2	0.866	0.121	0.874	0.120
27.5	300.7	0.640	0.324	0.656	0.327
28.0	301.2	0.840	0.144	0.849	0.143
28.5	301.7	0.705	0.266	0.719	0.267
29.0	302.2	0.810	0.171	0.821	0.170
29.5	302.7	0.780	0.198	0.792	0.198

Notes:

Method/Apparatus/Procedure:
   Two methods were used. The solubility temperatures of liquid phases were determined by the synthetic method (Alekseev¹). The analytical method described in Nikurashina and Mertslin² was used for determining equilibrium liquid phase compositions. Samples from coexisting liquid phases at equilibrium were analyzed by refractometry. No experimental details given.

Source and Purity of Materials:
   (1) Source not specified; purity not specified; n(20 °C, D) = 1.3820, d(20 °C, 4 °C) = 1.1320.
   (2) Source not specified; purity not specified; n(20 °C, D) = 1.4315, d(20 °C, 4 °C) = 1.1155.
   (3) Source not specified; purity not specified; n(20 °C, D) = 1.4290; d(20 °C, 4 °C) = 0.8246.

Estimated Errors:

   Temperature: Not specified.

References:
   ¹V. F. Alekseev, Zh. Russ. Fiz.-Khim. Ova 8, 249(1876).
   ²N. I. Nikurashina and R. V. Mertslin, Method of Secants (in Russian), Saratov University Press, 1969.

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