IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with 1,2-Ethanediol

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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

Original Measurements:
   Salvi, M.V.; Van Hook, W.A., J. Phys. Chem. 94, 7812 (1990).

Variables:
   Temperature = 308 K to 314 K
   Pressure = 308 K to 314 K

Prepared By:
   V. P. Sazonov

Experimental Remarks:

   The UCST is 313.10 K at x₁ = 0.640 (100 w₁ = 63.6, compiler).

Experimental Data:   (Notes on the Nomenclature)
  

Mutual solubility of nitromethane and 1,2-ethanediol

t/°C	T/K	Pressure [Mpa]	Mass Fraction w1 (compiler)	w1 Compiler Note	Mole Fraction x1	Comment(s)
35.259	308.409	0.880	43.30	2	0.4371	Glycol-rich phase
35.259	308.409	0.880	-	2	-	Nitromethane-rich phase
36.266	309.416	0.180	-	2	-	Glycol-rich phase
36.266	309.416	0.180	83.46	2	0.8369	Nitromethane-rich phase
36.800	309.950	0.120	46.21	2	0.4663	Glycol-rich phase
36.800	309.950	0.120	-	2	-	Nitromethane-rich phase
37.480	310.630	0.110	48.52	2	0.4894	Glycol-rich phase
37.480	310.630	0.110	-	2	-	Nitromethane-rich phase
38.355	311.505	0.150	-	2	-	Glycol-rich phase
38.355	311.505	0.150	77.20	2	0.7749	Nitromethane-rich phase
38.631	311.781	0.140	50.71	2	0.5113	Glycol-rich phase
38.631	311.781	0.140	-	2	-	Nitromethane-rich phase
38.773	311.923	0.100	-	2	-	Glycol-rich phase
38.773	311.923	0.100	73.65	2	0.7397	Nitromethane-rich phase
38.841	311.991	0.570	51.50	2	0.5172	Glycol-rich phase
38.841	311.991	0.570	-	2	-	Nitromethane-rich phase
39.339	312.489	0.130	-	2	-	Glycol-rich phase
39.339	312.489	0.130	71.09	2	0.7143	Nitromethane-rich phase
39.348	312.498	0.140	56.30	2	0.5671	Glycol-rich phase
39.348	312.498	0.140	-	2	-	Nitromethane-rich phase
39.797	312.947	0.160	-	2	-	Glycol-rich phase
39.797	312.947	0.160	67.45	2	0.6782	Nitromethane-rich phase
39.825	312.975	0.110	-	2	-	Glycol-rich phase
39.825	312.975	0.110	65.17	2	0.6555	Nitromethane-rich phase
39.934	313.084	0.120	62.59	2	0.6298	Glycol-rich phase
39.934	313.084	0.120	-	2	-	Nitromethane-rich phase
39.948	313.098	0.130	60.28	2	0.6068	Glycol-rich phase
39.948	313.098	0.130	-	2	-	Nitromethane-rich phase
35.272	308.422	2.51	43.30	2	0.4371	Glycol-rich phase
35.272	308.422	2.51	-	2	-	Nitromethane-rich phase
36.293	309.443	2.51	-	2	-	Glycol-rich phase
36.293	309.443	2.51	83.46	2	0.8369	Nitromethane-rich phase
36.822	309.972	2.50	46.21	2	0.4663	Glycol-rich phase
36.822	309.972	2.50	-	2	-	Nitromethane-rich phase
38.386	311.536	2.52	-	2	-	Glycol-rich phase
38.386	311.536	2.52	77.20	2	0.7749	Nitromethane-rich phase
38.541	311.691	2.50	48.52	2	0.4894	Glycol-rich phase
38.541	311.691	2.50	-	2	-	Nitromethane-rich phase
38.682	311.832	2.51	50.71	2	0.5113	Glycol-rich phase
38.682	311.832	2.51	-	2	-	Nitromethane-rich phase
38.807	311.957	2.50	51.50	2	0.5192	Glycol-rich phase
38.807	311.957	2.50	-	2	-	Nitromethane-rich phase
38.875	312.025	2.51	-	2	-	Glycol-rich phase
38.875	312.025	2.51	73.65	2	0.7397	Nitromethane-rich phase
39.236	312.386	2.51	-	2	-	Glycol-rich phase
39.236	312.386	2.51	71.09	2	0.7143	Nitromethane-rich phase
39.365	312.515	2.51	56.30	2	0.5671	Glycol-rich phase
39.365	312.515	2.51	-	2	-	Nitromethane-rich phase
39.750	312.900	2.50	-	2	-	Glycol-rich phase
39.750	312.900	2.50	67.45	2	0.6782	Nitromethane-rich phase
39.838	312.988	2.50	-	2	-	Glycol-rich phase
39.838	312.988	2.50	65.17	2	0.6555	Nitromethane-rich phase
39.848	312.998	2.50	60.28	2	0.6068	Glycol-rich phase
39.848	312.998	2.50	-	2	-	Nitromethane-rich phase
39.947	313.097	2.50	62.59	2	0.6298	Glycol-rich phase
39.947	313.097	2.50	-	2	-	Nitromethane-rich phase
36.327	309.477	5.00	-	2	-	Glycol-rich phase
36.327	309.477	5.00	83.46	2	0.8369	Nitromethane-rich phase
36.822	309.972	5.00	46.21	2	0.4663	Glycol-rich phase
36.822	309.972	5.00	-	2	-	Nitromethane-rich phase
37.813	310.963	5.25	48.52	2	0.4894	Glycol-rich phase
37.813	310.963	5.25	-	2	-	Nitromethane-rich phase
38.464	311.614	5.00	-	2	-	Glycol-rich phase
38.464	311.614	5.00	77.20	2	0.7749	Nitromethane-rich phase
38.713	311.863	5.03	50.71	2	0.5113	Glycol-rich phase
38.713	311.863	5.03	-	2	-	Nitromethane-rich phase
38.916	312.066	4.85	51.50	2	0.5192	Glycol-rich phase
38.916	312.066	4.85	-	2	-	Nitromethane-rich phase
39.041	312.191	5.00	-	2	-	Glycol-rich phase
39.041	312.191	5.00	73.65	2	0.7397	Nitromethane-rich phase
39.276	312.426	5.00	-	2	-	Glycol-rich phase
39.276	312.426	5.00	71.09	2	0.7143	Nitromethane-rich phase
39.471	312.621	5.00	56.30	2	0.5671	Glycol-rich phase
39.471	312.621	5.00	-	2	-	Nitromethane-rich phase
39.764	312.914	5.00	-	2	-	Glycol-rich phase
39.764	312.914	5.00	67.45	2	0.6782	Nitromethane-rich phase
39.868	313.018	5.00	-	2	-	Glycol-rich phase
39.868	313.018	5.00	65.17	2	0.6555	Nitromethane-rich phase
39.965	313.115	5.00	62.59	2	0.6298	Glycol-rich phase
39.965	313.115	5.00	-	2	-	Nitromethane-rich phase
39.980	313.130	5.00	60.28	2	0.6068	Glycol-rich phase
39.980	313.130	5.00	-	2	-	Nitromethane-rich phase
36.404	309.554	10.26	-	2	-	Glycol-rich phase
36.404	309.554	10.26	83.46	2	0.8369	Nitromethane-rich phase
36.941	310.091	10.06	46.21	2	0.4663	Glycol-rich phase
36.941	310.091	10.06	-	2	-	Nitromethane-rich phase
37.630	310.780	8.430	48.52	2	0.4894	Glycol-rich phase
37.630	310.780	8.430	-	2	-	Nitromethane-rich phase
38.503	311.653	10.00	-	2	-	Glycol-rich phase
38.503	311.653	10.00	77.20	2	0.7749	Nitromethane-rich phase
38.731	311.881	10.00	50.71	2	0.5113	Glycol-rich phase
38.731	311.881	10.00	-	2	-	Nitromethane-rich phase
39.130	312.280	10.10	-	2	-	Glycol-rich phase
39.130	312.280	10.10	73.65	2	0.7397	Nitromethane-rich phase
39.451	312.601	10.00	-	2	-	Glycol-rich phase
39.451	312.601	10.00	71.09	2	0.7143	Nitromethane-rich phase
39.508	312.658	10.00	56.30	2	0.5671	Glycol-rich phase
39.508	312.658	10.00	-	2	-	Nitromethane-rich phase
39.885	313.035	10.00	-	2	-	Glycol-rich phase
39.885	313.035	10.00	67.45	2	0.6782	Nitromethane-rich phase
39.929	313.079	10.00	-	2	-	Glycol-rich phase
39.929	313.079	10.00	65.17	2	0.6555	Nitromethane-rich phase
40.041	313.191	10.03	60.28	2	0.6068	Glycol-rich phase
40.041	313.191	10.03	-	2	-	Nitromethane-rich phase
40.061	313.211	9.740	62.59	2	0.6298	Glycol-rich phase
40.061	313.211	9.740	-	2	-	Nitromethane-rich phase
36.457	309.607	15.04	-	2	-	Glycol-rich phase
36.457	309.607	15.04	83.46	2	0.8369	Nitromethane-rich phase
37.032	310.182	15.02	46.21	2	0.4663	Glycol-rich phase
37.032	310.182	15.02	-	2	-	Nitromethane-rich phase
38.636	311.786	15.00	-	2	-	Glycol-rich phase
38.636	311.786	15.00	77.20	2	0.7749	Nitromethane-rich phase
38.756	311.906	15.00	50.71	2	0.5113	Glycol-rich phase
38.756	311.906	15.00	-	2	-	Nitromethane-rich phase
38.863	312.013	13.27	51.50	2	0.5192	Glycol-rich phase
38.863	312.013	13.27	-	2	-	Nitromethane-rich phase
39.290	312.440	14.65	-	2	-	Glycol-rich phase
39.290	312.440	14.65	73.65	2	0.7397	Nitromethane-rich phase
39.535	312.685	14.98	56.30	2	0.5671	Glycol-rich phase
39.535	312.685	14.98	-	2	-	Nitromethane-rich phase
39.638	312.788	15.00	-	2	-	Glycol-rich phase
39.638	312.788	15.00	71.09	2	0.7143	Nitromethane-rich phase
39.953	313.103	15.00	-	2	-	Glycol-rich phase
39.953	313.103	15.00	67.45	2	0.6782	Nitromethane-rich phase
40.008	313.158	15.02	-	2	-	Glycol-rich phase
40.008	313.158	15.02	65.17	2	0.6555	Nitromethane-rich phase
40.131	313.281	15.00	62.59	2	0.6298	Glycol-rich phase
40.131	313.281	15.00	-	2	-	Nitromethane-rich phase
40.190	313.340	15.00	60.28	2	0.6068	Glycol-rich phase
40.190	313.340	15.00	-	2	-	Nitromethane-rich phase
36.514	309.664	20.06	-	2	-	Glycol-rich phase
36.514	309.664	20.06	83.46	2	0.8369	Nitromethane-rich phase
37.292	310.442	20.00	46.21	2	0.4663	Glycol-rich phase
37.292	310.442	20.00	-	2	-	Nitromethane-rich phase
38.752	311.902	20.00	50.71	2	0.5113	Glycol-rich phase
38.752	311.902	20.00	-	2	-	Nitromethane-rich phase
38.727	311.907	19.96	-	2	-	Glycol-rich phase
38.727	311.907	19.96	77.20	2	0.7749	Nitromethane-rich phase
38.940	312.090	20.36	51.50	2	0.5192	Glycol-rich phase
38.940	312.090	20.36	-	2	-	Nitromethane-rich phase
39.303	312.453	20.03	-	2	-	Glycol-rich phase
39.303	312.453	20.03	73.65	2	0.7397	Nitromethane-rich phase
39.598	312.748	20.00	56.30	2	0.5671	Glycol-rich phase
39.598	312.748	20.00	-	2	-	Nitromethane-rich phase
39.673	312.823	20.22	-	2	-	Glycol-rich phase
39.673	312.823	20.22	71.09	2	0.7143	Nitromethane-rich phase
40.025	313.175	20.00	-	2	-	Glycol-rich phase
40.025	313.175	20.00	67.45	2	0.6782	Nitromethane-rich phase
40.090	313.240	20.00	-	2	-	Glycol-rich phase
40.090	313.240	20.00	65.17	2	0.6555	Nitromethane-rich phase
40.118	313.268	20.00	60.28	2	0.6068	Glycol-rich phase
40.118	313.268	20.00	-	2	-	Nitromethane-rich phase
40.230	313.380	19.98	62.59	2	0.6298	Glycol-rich phase
40.230	313.380	19.98	-	2	-	Nitromethane-rich phase
37.456	310.606	25.00	43.30	2	0.4371	Glycol-rich phase
37.456	310.606	25.00	-	2	-	Nitromethane-rich phase
37.952	311.102	25.00	50.71	2	0.5113	Glycol-rich phase
37.952	311.102	25.00	-	2	-	Nitromethane-rich phase
38.847	311.997	25.06	-	2	-	Glycol-rich phase
38.847	311.997	25.06	77.20	2	0.7749	Nitromethane-rich phase
38.883	312.033	24.25	51.50	2	0.5192	Glycol-rich phase
38.883	312.033	24.25	-	2	-	Nitromethane-rich phase
39.401	312.551	25.01	-	2	-	Glycol-rich phase
39.401	312.551	25.01	73.65	2	0.7397	Nitromethane-rich phase
39.704	312.854	25.00	-	2	-	Glycol-rich phase
39.704	312.854	25.00	71.09	2	0.7143	Nitromethane-rich phase
40.010	313.160	24.89	56.30	2	0.5671	Glycol-rich phase
40.010	313.160	24.89	-	2	-	Nitromethane-rich phase
40.112	313.262	25.01	-	2	-	Glycol-rich phase
40.112	313.262	25.01	67.45	2	0.6782	Nitromethane-rich phase
40.163	313.313	25.04	-	2	-	Glycol-rich phase
40.163	313.313	25.04	65.17	2	0.6555	Nitromethane-rich phase
40.193	313.343	25.00	60.28	2	0.6068	Glycol-rich phase
40.193	313.343	25.00	-	2	-	Nitromethane-rich phase
40.298	313.448	25.00	62.59	2	0.6298	Glycol-rich phase
40.298	313.448	25.00	-	2	-	Nitromethane-rich phase
36.682	309.832	30.00	-	2	-	Glycol-rich phase
36.682	309.832	30.00	83.46	2	0.8369	Nitromethane-rich phase
38.847	311.997	30.00	50.71	2	0.5113	Glycol-rich phase
38.847	311.997	30.00	-	2	-	Nitromethane-rich phase
38.964	312.114	29.98	-	2	-	Glycol-rich phase
38.964	312.114	29.98	77.20	2	0.7749	Nitromethane-rich phase
39.072	312.222	30.00	51.50	2	0.5192	Glycol-rich phase
39.072	312.222	30.00	-	2	-	Nitromethane-rich phase
39.401	312.551	30.11	-	2	-	Glycol-rich phase
39.401	312.551	30.11	73.65	2	0.7397	Nitromethane-rich phase
39.837	312.987	30.00	-	2	-	Glycol-rich phase
39.837	312.987	30.00	71.09	2	0.7143	Nitromethane-rich phase
39.922	313.072	30.00	56.30	2	0.5671	Glycol-rich phase
39.922	313.072	30.00	-	2	-	Nitromethane-rich phase
40.183	313.333	30.00	-	2	-	Glycol-rich phase
40.183	313.333	30.00	67.45	2	0.6782	Nitromethane-rich phase
40.225	313.375	30.00	-	2	-	Glycol-rich phase
40.225	313.375	30.00	65.17	2	0.6555	Nitromethane-rich phase
40.300	313.450	30.00	60.28	2	0.6068	Glycol-rich phase
40.300	313.450	30.00	-	2	-	Nitromethane-rich phase
40.324	313.474	29.97	62.59	2	0.6298	Glycol-rich phase
40.324	313.474	29.97	-	2	-	Nitromethane-rich phase
36.754	309.904	35.14	-	2	-	Glycol-rich phase
36.754	309.904	35.14	83.46	2	0.8369	Nitromethane-rich phase
37.093	310.243	34.93	46.21	2	0.4663	Glycol-rich phase
37.093	310.243	34.93	-	2	-	Nitromethane-rich phase
39.801	312.951	35.00	-	2	-	Glycol-rich phase
39.801	312.951	35.00	73.65	2	0.7397	Nitromethane-rich phase
39.898	313.048	35.00	50.71	2	0.5113	Glycol-rich phase
39.898	313.048	35.00	-	2	-	Nitromethane-rich phase
39.900	313.050	35.00	-	2	-	Glycol-rich phase
39.900	313.050	35.00	71.09	2	0.7143	Nitromethane-rich phase
39.955	313.105	34.82	56.30	2	0.5671	Glycol-rich phase
39.955	313.105	34.82	-	2	-	Nitromethane-rich phase
40.281	313.431	35.04	-	2	-	Glycol-rich phase
40.281	313.431	35.04	67.45	2	0.6782	Nitromethane-rich phase
40.310	313.460	35.00	-	2	-	Glycol-rich phase
40.310	313.460	35.00	65.17	2	0.6555	Nitromethane-rich phase
40.398	313.548	35.03	60.28	2	0.6068	Glycol-rich phase
40.398	313.548	35.03	-	2	-	Nitromethane-rich phase
40.482	313.632	35.00	62.59	2	0.6298	Glycol-rich phase
40.482	313.632	35.00	-	2	-	Nitromethane-rich phase
36.828	309.978	40.00	-	2	-	Glycol-rich phase
36.828	309.978	40.00	83.46	2	0.8369	Nitromethane-rich phase
38.869	312.019	39.98	50.71	2	0.5113	Glycol-rich phase
38.869	312.019	39.98	-	2	-	Nitromethane-rich phase
39.155	312.305	40.00	-	2	-	Glycol-rich phase
39.155	312.305	40.00	77.20	2	0.7749	Nitromethane-rich phase
39.931	313.081	40.00	-	2	-	Glycol-rich phase
39.931	313.081	40.00	73.65	2	0.7397	Nitromethane-rich phase
40.183	313.333	40.00	56.30	2	0.5671	Glycol-rich phase
40.183	313.333	40.00	-	2	-	Nitromethane-rich phase
40.356	313.506	39.90	-	2	-	Glycol-rich phase
40.356	313.506	39.90	65.17	2	0.6555	Nitromethane-rich phase
40.371	313.521	40.00	-	2	-	Glycol-rich phase
40.371	313.521	40.00	67.45	2	0.6782	Nitromethane-rich phase
40.507	313.657	40.00	60.28	2	0.6068	Glycol-rich phase
40.507	313.657	40.00	-	2	-	Nitromethane-rich phase
40.558	313.708	40.00	62.59	2	0.6298	Glycol-rich phase
40.558	313.708	40.00	-	2	-	Nitromethane-rich phase
36.903	310.053	45.04	-	2	-	Glycol-rich phase
36.903	310.053	45.04	83.46	2	0.8369	Nitromethane-rich phase
38.982	312.132	45.00	50.71	2	0.5113	Glycol-rich phase
38.982	312.132	45.00	-	2	-	Nitromethane-rich phase
39.281	312.431	45.00	-	2	-	Glycol-rich phase
39.281	312.431	45.00	77.20	2	0.7749	Nitromethane-rich phase
39.997	313.147	45.00	-	2	-	Glycol-rich phase
39.997	313.147	45.00	73.65	2	0.7397	Nitromethane-rich phase
40.013	313.163	44.93	-	2	-	Glycol-rich phase
40.013	313.163	44.93	71.09	2	0.7143	Nitromethane-rich phase
40.276	313.426	45.06	56.30	2	0.5671	Glycol-rich phase
40.276	313.426	45.06	-	2	-	Nitromethane-rich phase
40.437	313.587	45.00	-	2	-	Glycol-rich phase
40.437	313.587	45.00	65.17	2	0.6555	Nitromethane-rich phase
40.552	313.702	45.00	60.28	2	0.6068	Glycol-rich phase
40.552	313.702	45.00	-	2	-	Nitromethane-rich phase
40.669	313.819	45.00	62.59	2	0.6298	Glycol-rich phase
40.669	313.819	45.00	-	2	-	Nitromethane-rich phase
39.061	312.211	50.00	50.71	2	0.5113	Glycol-rich phase
39.061	312.211	50.00	-	2	-	Nitromethane-rich phase
39.365	312.515	50.00	-	2	-	Glycol-rich phase
39.365	312.515	50.00	77.20	2	0.7749	Nitromethane-rich phase
40.044	313.194	50.06	-	2	-	Glycol-rich phase
40.044	313.194	50.06	73.65	2	0.7397	Nitromethane-rich phase
40.096	313.246	50.00	-	2	-	Glycol-rich phase
40.096	313.246	50.00	71.09	2	0.7143	Nitromethane-rich phase
40.499	313.649	50.00	-	2	-	Glycol-rich phase
40.499	313.649	50.00	65.17	2	0.6555	Nitromethane-rich phase
40.550	313.700	49.71	56.30	2	0.5671	Glycol-rich phase
40.550	313.700	49.71	-	2	-	Nitromethane-rich phase
40.632	313.782	49.96	60.28	2	0.6068	Glycol-rich phase
40.632	313.782	49.96	-	2	-	Nitromethane-rich phase
40.745	313.895	50.00	62.59	2	0.6298	Glycol-rich phase
40.745	313.895	50.00	-	2	-	Nitromethane-rich phase

Method/Apparatus/Procedure:
   The synthetic method was used. Measurements were made using techniques and apparatus described in Ref. 1 with minor modification. Mixtures of (1) and (2) were prepared gravimetrically. The solutions were degassed with a series of freeze-pump (≤0.1 Pa )-thaw cycles. After transfer to the apparatus (previously warmed above the CST) the demixing was determined by allowing the mixture to cool to the transition temperature at a rate of 3 to 5 mK/min while stirring. Temperature was measured by platinum resistance thermometry.

Source and Purity of Materials:
   (1) Mallinkrodt; analytical grade; dried over anhydrous CaCl₂ and twice distilled in a spinning band column below 343 K.
   (2) Mallinkrodt; analytical grade; dried over molecular sieve and twice distilled in a spinning band column at 16 kPa.

Estimated Errors:

   Temperature: ± 0.3 mK.
   Pressure: ±0.01MPa

References:
   ¹ R. R. Singh and W. A. Van Hook, J. Chem. Phys. 87, 6097 (1987).

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