IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitromethane with 2,2’-Iminobisethanol and Octane

Components:
   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) 2,2’-Iminobisethanol; C4H11NO2; [111-42-2]  NIST Chemistry WebBook for detail
   (3) Octane; C8H18; [111-65-9]  NIST Chemistry WebBook for detail

Original Measurements:
   Cherkasova, N. M.; Zhuravleva, I. K.; Zhuravlev, E. F. and Mukhametshina, V. B.; Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol. 17, 1602 (1974). *Deposited Doc., VINITI 1181 (1974).

Variables:
   Temperature = 309 K to 366 K

Prepared By:
   V. P. Sazonov

Experimental Remarks:

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

The compositions of two and three coexistent phases at 50 °C are also presented in graphical form.

Experimental Data: (Notes on the Nomenclature)

Table 1. Solubility temperatures of the three liquid phases*
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
35.5	308.7	0.153	0.490	0.243	0.453
43.7	316.9	0.277	0.075	0.416	0.065
48.5	321.7	0.165	0.450	0.261	0.413
50.0	323.2	0.271	0.095	0.408	0.083
55.4	328.6	0.264	0.120	0.398	0.105
55.9	329.1	0.179	0.402	0.281	0.367
58.1	331.3	0.258	0.140	0.390	0.123
59.8	333.0	0.192	0.360	0.300	0.326
61.3	334.5	0.205	0.318	0.318	0.286
61.6	334.8	0.218	0.272	0.336	0.244
61.7	334.9	0.231	0.230	0.354	0.205
49.0	322.2	0.462	0.076	0.613	0.059
50.5	323.7	0.341	0.318	0.482	0.261
55.5	328.7	0.452	0.096	0.603	0.074
55.8	329.0	0.355	0.290	0.498	0.236
58.5	331.7	0.365	0.270	0.509	0.219
61.4	334.6	0.410	0.180	0.559	0.142
49.5	322.7	0.556	0.206	0.693	0.149
56.1	329.3	0.572	0.183	0.707	0.131
56.2	329.4	0.651	0.070	0.774	0.048
60.0	333.2	0.636	0.091	0.762	0.063
61.1	334.3	0.602	0.140	0.733	0.099
61.3	334.5	0.618	0.117	0.747	0.082

Table 2. Solubility temperatures of the two liquid phases
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
44.2	317.4	0.2970	0.6930	0.4215	0.5709
45.0	318.2	0.2955	0.6895	0.4198	0.5688
51.0	324.2	0.2952	0.6888	0.4195	0.5683
62.0	335.2	0.2940	0.6860	0.4182	0.5666
81.0	354.2	0.2925	0.6825	0.4166	0.5644
91.0	364.2	0.2916	0.6804	0.4156	0.5631
56.5	329.7	0.3960	0.5940	0.5307	0.4621
56.8	330.0	0.3932	0.5894	0.5282	0.4596
70.0	343.2	0.3900	0.5850	0.5249	0.4571
88.0	361.2	0.3892	0.5838	0.5241	0.4565
91.0	364.2	0.3880	0.5820	0.5230	0.4554
62.5	335.7	0.4975	0.4975	0.6305	0.3661
63.0	336.2	0.4950	0.4950	0.6284	0.3648
63.2	336.4	0.4935	0.4935	0.6271	0.3641
63.5	336.7	0.4900	0.4900	0.6241	0.3623
63.8	337.0	0.4850	0.4850	0.6197	0.3598
73.0	346.2	0.4825	0.4825	0.6176	0.3585
64.0	337.2	0.5940	0.3960	0.7163	0.2772
64.1	337.3	0.5910	0.3940	0.7140	0.2763
64.3	337.5	0.5880	0.3920	0.7116	0.2754
64.5	337.7	0.5850	0.3900	0.7093	0.2745
69.3	342.5	0.5820	0.3880	0.7069	0.2736
78.5	351.7	0.5772	0.3848	0.7031	0.2721
93.0	366.2	0.5700	0.3800	0.6974	0.2699
64.1	337.3	0.6965	0.2985	0.7983	0.1986
64.2	337.4	0.6944	0.2976	0.7968	0.1983
64.3	337.5	0.6916	0.2964	0.7948	0.1978
65.0	338.2	0.6860	0.2940	0.7909	0.1968
65.5	338.7	0.6825	0.2925	0.7884	0.1962
65.8	339.0	0.6804	0.2916	0.7869	0.1958
76.5	349.7	0.6720	0.2880	0.7809	0.1943
80.0	353.2	0.6685	0.2865	0.7783	0.1937
89.8	363.0	0.6594	0.2826	0.7717	0.1920
63.4	336.6	0.7976	0.1994	0.8717	0.1265
63.5	336.7	0.7944	0.1986	0.8697	0.1262
63.7	336.9	0.7896	0.1974	0.8666	0.1258
63.8	337.0	0.7840	0.1960	0.8630	0.1252
63.9	337.1	0.7800	0.1950	0.8604	0.1249
64.0	337.2	0.7760	0.1940	0.8578	0.1245
70.0	343.2	0.7680	0.1920	0.8525	0.1238
75.0	348.2	0.7640	0.1910	0.8499	0.1233
85.0	358.2	0.7560	0.1890	0.8446	0.1226
89.0	362.2	0.7520	0.1880	0.8419	0.1222
56.7	329.9	0.8775	0.0975	0.9262	0.0597
57.0	330.2	0.8685	0.0965	0.9208	0.0594
57.1	330.3	0.8640	0.0960	0.9181	0.0592
71.0	344.2	0.8505	0.0945	0.9099	0.0587
76.0	349.2	0.8487	0.0943	0.9088	0.0586
83.0	356.2	0.8460	0.0940	0.9071	0.0585
90.0	363.2	0.8415	0.0935	0.9043	0.0583

Table 3. Composition of three coexistent liquid phases system nitromethane + 2,2’-iminobisethanol + octane*
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
50	323	0.934	0.039	0.962	0.023	nitromethane-rich phase
50	323	0.325	0.660	0.454	0.535	iminobisethanol-rich phase
50	323	0.048	0.005	0.086	0.005	octane-rich phase

Notes:
   Table 1  ^*  This table was prepared by the compiler from the published curve of ternary system solubility.
   Table 3  ^*  These data were extracted graphically by the compiler.

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; freshly distilled;b. p. = 101 °C, n(20 °C, D) = 1.3816.
   (2) Source not specified, freshly distilled;n(20 °C, D) = 1.4770, d(20 °C, 4 °C) = 1.0970.
   (3) Source not specified, freshly distilled;b. p. = 113 °C, n(20 °C, D) = 1.3975.

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.