IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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

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-Dodecanol; C12H26O; [112-53-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Markuzin, N. P. and Nikanorova, L. A.; Zh. Obshch. Khim. 32, 3469 (1962).

Variables:
   Temperature = 301 K and 313 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)

Table 1. Mutual solubility of nitromethane, 1,2-ethanediol and 1-dodecanol
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
28.0	301.2	0.093	0.091	0.207	0.199
28.0	301.2	0.132	0.174	0.249	0.323
28.0	301.2	0.156	0.223	0.270	0.379
28.0	301.2	0.171	0.251	0.282	0.406
28.0	301.2	0.183	0.269	0.292	0.422
28.0	301.2	0.207	0.317	0.307	0.462
28.0	301.2	0.924	0.046	0.944	0.046
28.0	301.2	0.875	0.091	0.897	0.092
28.0	301.2	0.845	0.117	0.869	0.118
28.0	301.2	0.381	0.587	0.393	0.596
28.0	301.2	0.388	0.575	0.402	0.586
28.0	301.2	0.430	0.512	0.451	0.529
28.0	301.2	0.440	0.496	0.464	0.514
28.0	301.2	0.896	0.093	0.904	0.092
28.0	301.2	0.878	0.103	0.891	0.103
28.0	301.2	0.856	0.117	0.874	0.117
28.0	301.2	0.854	0.118	0.872	0.119
28.0	301.2	0.099	0.890	0.101	0.895
28.0	301.2	0.196	0.781	0.202	0.790
28.0	301.2	0.269	0.693	0.279	0.708
28.0	301.2	0.384	0.554	0.405	0.574
28.0	301.2	0.420	0.502	0.447	0.526
28.0	301.2	0.433	0.488	0.461	0.511
28.0	301.2	0.077	0.255	0.141	0.459
28.0	301.2	0.140	0.299	0.227	0.476
28.0	301.2	0.171	0.317	0.263	0.479
28.0	301.2	0.201	0.337	0.294	0.485
40.0	313.2	0.325	0.675	0.329	0.671
40.0	313.2	0.163	0.816	0.168	0.825
40.0	313.2	0.208	0.751	0.217	0.769
40.0	313.2	0.227	0.697	0.242	0.731
40.0	313.2	0.236	0.608	0.267	0.675
40.0	313.2	0.205	0.490	0.261	0.612
40.0	313.2	0.202	0.485	0.258	0.610
40.0	313.2	0.197	0.454	0.260	0.589
40.0	313.2	0.163	0.367	0.241	0.532
40.0	313.2	0.109	0.306	0.181	0.500
40.0	313.2	0.070	0.263	0.128	0.473
40.0	313.2	0.011	0.214	0.023	0.443
40.0	313.2	0.180	0.130	0.337	0.240
40.0	313.2	0.219	0.170	0.374	0.285
40.0	313.2	0.256	0.210	0.402	0.324
40.0	313.2	0.295	0.242	0.431	0.348
40.0	313.2	0.337	0.263	0.464	0.356
40.0	313.2	0.385	0.270	0.504	0.348
40.0	313.2	0.447	0.286	0.548	0.345
40.0	313.2	0.486	0.291	0.575	0.339
40.0	313.2	0.506	0.300	0.585	0.341
40.0	313.2	0.534	0.287	0.610	0.323
40.0	313.2	0.619	0.260	0.677	0.280
40.0	313.2	0.733	0.183	0.779	0.191
40.0	313.2	0.842	0.097	0.879	0.100

Table 2. Compositions of two and three coexisting liquid phases
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
28.0	301.2	0.876	0.105	0.889	0.105	nitromethane-rich phase
28.0	301.2	0.865	0.112	0.880	0.112	nitromethane-rich phase
28.0	301.2	0.825	0.135	0.850	0.137	nitromethane-rich phase
28.0	301.2	-	-	-	-	nitromethane-rich phase
28.0	301.2	-	-	-	-	nitromethane-rich phase
28.0	301.2	-	-	-	-	nitromethane-rich phase
28.0	301.2	0.950	0.020	0.970	0.020	nitromethane-rich phase
28.0	301.2	0.875	0.094	0.895	0.095	nitromethane-rich phase
28.0	301.2	0.390	0.571	0.404	0.582	ethanediol-rich phase
28.0	301.2	0.408	0.544	0.426	0.558	ethanediol-rich phase
28.0	301.2	0.460	0.459	0.490	0.481	ethanediol-rich phase
28.0	301.2	0.227	0.744	0.234	0.756	ethanediol-rich phase
28.0	301.2	0.135	0.850	0.138	0.857	ethanediol-rich phase
28.0	301.2	0.106	0.883	0.108	0.888	ethanediol-rich phase
28.0	301.2	-	-	-	-	ethanediol-rich phase
28.0	301.2	-	-	-	-	ethanediol-rich phase
28.0	301.2	-	-	-	-	alcohol-rich phase
28.0	301.2	-	-	-	-	alcohol-rich phase
28.0	301.2	0.235	0.365	0.324	0.495	alcohol-rich phase
28.0	301.2	0.175	0.315	0.268	0.475	alcohol-rich phase
28.0	301.2	0.092	0.268	0.163	0.466	alcohol-rich phase
28.0	301.2	0.040	0.235	0.079	0.454	alcohol-rich phase
28.0	301.2	0.092	0.078	0.209	0.174	alcohol-rich phase
28.0	301.2	0.204	0.318	0.303	0.464	alcohol-rich phase

Method/Apparatus/Procedure:
   The analytical and titration methods were used. Solubility curves were determined by titration. Samples from coexisting liquid phases at equilibrium were analyzed by refractometry.

Source and Purity of Materials:
   (1) Source not specified; pure grade reagent; dried and distilled over a column with of 20 theoretical plates; n(20 °C, D) = 1.3820, d(20 °C, 4 °C) = 1.1379.
   (2) Source not specified; purified by vacuum distillation; n(20 °C, D) = 1.4318, d(20 °C, 4 °C) = 1.1134.
   (3) Source not specified; purified by vacuum distillation; m. p. = 22.2 °C.

Estimated Errors:
   Solubility: 1 %.
   Temperature: control to ± 0.03 K,