IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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

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-Pentadecanol; C15H32O; [629-76-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Zhuravleva, I. K.; Zhuravlev, E. F. and Faizulova, R. R.; Zh. Obshch. Khim. 45, 1929-33 (1975).

Variables:
   Temperature = 313 K to 338 K

Prepared By:
   V. P. Sazonov

Experimental Remarks:

   The solubility temperatures of the liquid phases were determined in ternary mixtures with a constant mass relationship of (1) and (2), respectively, 30.0:70.0, 40.0:60.0, 45.0:55.0, 50.0:50.0, 55.0:45.0, 60.0:40.0, 70.0:30.0, 80.0:20.0, and 90.0:10.0, and also in ternary mixtures with a constant mass content of (3) as 20.0, 30.0, and 40.0 mass %, respectively. These data are also presented in graphical form as isothermal curves of ternary system solubility.

The compositions of coexistent two and three liquid phases at 34 °C and 36 °C are also presented in graphical form.

Experimental Data: (Notes on the Nomenclature)

Table 1. Solubility of nitromethane, 1,2-ethanediol and 1-pentadecanol*
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
40	313	0.072	0.167	0.164	0.374
40	313	0.112	0.168	0.238	0.352
40	313	0.089	0.038	0.247	0.104
40	313	0.086	0.022	0.249	0.062
40	313	0.086	0.009	0.255	0.026
40	313	0.111	0.090	0.269	0.214
40	313	0.109	0.072	0.273	0.178
40	313	0.138	0.169	0.282	0.340
40	313	0.128	0.128	0.283	0.278
40	313	0.298	0.695	0.303	0.695
40	313	0.395	0.592	0.403	0.594
40	313	0.490	0.490	0.502	0.493
40	313	0.587	0.391	0.601	0.393
40	313	0.684	0.293	0.699	0.295
40	313	0.782	0.196	0.797	0.197
40	313	0.882	0.098	0.897	0.098
58	331	0.132	0.192	0.263	0.377
58	331	0.180	0.219	0.324	0.387
58	331	0.249	0.249	0.396	0.390
58	331	0.159	0.018	0.401	0.045
58	331	0.174	0.044	0.408	0.102
58	331	0.202	0.087	0.423	0.179
58	331	0.300	0.245	0.453	0.364
58	331	0.301	0.200	0.477	0.312
58	331	0.477	0.477	0.498	0.489
58	331	0.513	0.419	0.544	0.437
58	331	0.554	0.370	0.590	0.388
58	331	0.651	0.279	0.690	0.291
58	331	0.748	0.187	0.788	0.194
58	331	0.853	0.095	0.888	0.097
60	333	0.188	0.229	0.330	0.396
60	333	0.266	0.266	0.408	0.401
60	333	0.175	0.019	0.428	0.046
60	333	0.189	0.047	0.430	0.105
60	333	0.246	0.106	0.470	0.199
60	333	0.369	0.302	0.489	0.394
60	333	0.449	0.449	0.489	0.481
60	333	0.457	0.374	0.525	0.423
60	333	0.419	0.280	0.541	0.355
60	333	0.477	0.318	0.565	0.370
60	333	0.627	0.269	0.682	0.288
60	333	0.736	0.184	0.784	0.193
60	333	0.848	0.094	0.887	0.097
65	338	0.140	0.210	0.269	0.397
65	338	0.219	0.268	0.353	0.425
65	338	0.359	0.539	0.392	0.578
65	338	0.215	0.024	0.487	0.053
65	338	0.239	0.060	0.492	0.122
65	338	0.350	0.150	0.555	0.234
65	338	0.444	0.191	0.609	0.257
65	338	0.501	0.200	0.644	0.253
65	338	0.597	0.200	0.704	0.232
65	338	0.690	0.172	0.770	0.189
65	338	0.818	0.091	0.878	0.096

Table 2. Composition of three coexistent liquid phases system nitromethane + 1,2-ethanediol + 1-pentadecanol*
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
34	307	0.768	0.212	0.722	0.212	nitromethane-rich phase
34	307	0.455	0.538	0.462	0.537	glycol-rich phase
34	307	0.108	0.128	0.247	0.287	alcohol-rich phase

Notes:
   Table 1  ^*  This table was prepared by the compiler from the published curve of ternary system solubility.
   Table 2  ^*  This table was prepared by the compiler from the published curve of ternary system solubility.

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; purified; b. p. = 101.3 °C; n(20 °C, D) = 1.3820, d(20 °C, 4 °C) = 1.1320.
   (2) Source not specified; purified;b. p. = 95.0 °C/0.8 kPa; n(20 °C, D) = 1.4315, d(20 °C, 4 °C) = 1.1155.
   (3) Source not specified; purified; b. p. = 174.0 °C/0.8 kPa; m. p. = 43.0 °C; n(50 °C, D) = 1.4390.

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.