IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitromethane with Cyclohexanol and Water

Components:
   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) Cyclohexanol; C6H12O ; [108-93-0]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Erofeeva, L. F.; and Yunnikova, N. V.; Sb. Nauch. Tr., Kuzbas. Polytekh. Inst. 26, 1-6 (1971).

Variables:
   Temperature = 268 K to 362 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) as 10.0:90.0, 30.0:70.0, 50.0:50.0, 63.0:37.0, 65.0:35.0, 68.0:32.0, 70.0:30.0, and 90.0:10.0, and also in ternary mixtures with a constant mass content of (3), respectively, 1.0 mass %.

The compositions of coexistent two and three liquid phases at 2 °C, 3 °C, 5 °C, and 20 °C are also reported in graphical form.

Experimental Data: (Notes on the Nomenclature)

Table 1. Solubility temperatures of the liquid phases
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
58.5	331.7	0.0849	0.7637	0.0799	0.4378
76.0	349.2	0.0833	0.7493	0.0755	0.4125
31.3	304.5	0.2579	0.6019	0.2345	0.3336
52.0	325.2	0.2525	0.5892	0.2200	0.3128
76.5	349.7	0.2423	0.5655	0.1957	0.2784
88.0	361.2	0.0157	0.0366	0.0048	0.0069
5.0	278.2	0.4867	0.4867	0.5572	0.3396
14.2	287.4	0.4504	0.4505	0.4247	0.2589
38.5	311.7	0.4378	0.4378	0.3888	0.2369
62.0	335.2	0.4188	0.4189	0.3422	0.2086
72.0	345.2	0.4115	0.4116	0.3262	0.1988
77.0	350.2	0.4006	0.4006	0.3039	0.1852
81.0	354.2	0.0880	0.0880	0.0300	0.0183
84.0	357.2	0.3893	0.3893	0.2828	0.1724
2.5	275.7	0.5930	0.3484	0.5907	0.2115
4.8	278.0	0.6069	0.3565	0.6401	0.2291
8.5	281.7	0.6170	0.3623	0.6796	0.2432
16.8	290.0	0.5838	0.3428	0.5606	0.2006
34.2	307.2	0.5727	0.3364	0.5275	0.1888
45.0	318.2	0.5634	0.3309	0.5016	0.1796
3.0	276.2	0.6103	0.3287	0.6000	0.1969
3.0	276.2	0.6098	0.3280	0.5976	0.1959
3.5	276.7	0.6196	0.3337	0.6315	0.2073
4.0	277.2	0.6222	0.3351	0.6407	0.2103
4.5	277.7	0.6261	0.3372	0.6550	0.2150
7.0	280.2	0.6324	0.3406	0.6790	0.2228
8.1	281.3	0.6342	0.3415	0.6859	0.2251
12.5	285.7	0.6435	0.3465	0.7242	0.2376
26.3	299.5	0.5974	0.3216	0.5595	0.1835
40.1	313.3	0.5860	0.3156	0.5272	0.1730
51.8	325.0	0.5743	0.3092	0.4962	0.1628
4.0	277.2	0.6491	0.3055	0.6563	0.1882
8.9	282.1	0.6649	0.3130	0.7143	0.2049
10.2	283.5	0.6375	0.3000	0.6177	0.1772
31.0	304.2	0.6241	0.2936	0.5769	0.1654
46.0	319.2	0.6103	0.2872	0.5389	0.1545
57.0	330.2	0.5966	0.2808	0.5043	0.1446
3.1	276.3	0.6731	0.2885	0.6875	0.1796
3.1	276.3	0.6671	0.2859	0.6667	0.1741
5.2	278.4	0.6749	0.2893	0.6940	0.1813
6.5	279.7	0.6804	0.2916	0.7140	0.1865
9.2	282.4	0.6871	0.2944	0.7395	0.1931
14.0	287.2	0.6951	0.2979	0.7720	0.2016
23.5	296.7	0.6521	0.2794	0.6184	0.1615
46.0	319.2	0.6300	0.2700	0.5559	0.1452
60.0	333.2	0.6133	0.2629	0.5141	0.1343
65.0	338.2	0.0815	0.0349	0.0263	0.0069
68.5	341.7	0.5979	0.2563	0.4791	0.1252
75.8	349.0	0.5820	0.2494	0.4459	0.1165
76.0	349.2	0.0887	0.0380	0.0289	0.0075
83.0	356.2	0.0960	0.0412	0.0315	0.0082
86.0	359.2	0.5521	0.2366	0.3910	0.1021
86.0	359.2	0.1030	0.0442	0.0341	0.0089
39.5	312.7	0.8516	0.0946	0.0528	0.7802
52.5	325.7	0.1359	0.0151	0.0030	0.0450
72.0	345.2	0.1762	0.0196	0.0041	0.0605
81.0	354.2	0.7738	0.0860	0.0403	0.5947
88.0	361.2	0.2218	0.0247	0.0054	0.0795
89.0	362.2	0.7406	0.0823	0.0361	0.5326
-5.0	268.2	0.8910	0.0990	0.0612	0.9044
2.8	276.0	0.8415	0.1485	0.0937	0.8712
3.0	276.2	0.3465	0.6435	0.5076	0.4485
6.0	279.2	0.3960	0.5940	0.4571	0.5001
7.0	280.2	0.7920	0.1980	0.1275	0.8367
8.5	281.7	0.4455	0.5445	0.4091	0.5492
10.0	283.2	0.4950	0.4950	0.3632	0.5960
11.0	284.2	0.7425	0.2475	0.1627	0.8008
11.5	284.7	0.5445	0.4455	0.3195	0.6407
12.0	285.2	0.6930	0.2970	0.1994	0.7633
12.5	285.7	0.5940	0.3960	0.2776	0.6834
13.0	286.2	0.6435	0.3465	0.2377	0.7242

Table 2. Compositions of three coexisting liquid phases system nitromethane + cyclohexanol + water*
t/°C	T/K	Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
2	275	0.554	0.389	0.741	0.140	nitromethane-rich phase
2	275	0.446	0.473	0.489	0.247	alcohol-rich phase
2	275	0.051	0.026	0.028	0.005	water-rich phase

Notes:
   Table 1  ^*   These data were extracted graphically by the compiler.

Method/Apparatus/Procedure:
   Two methods were used. The solubility temperatures of the liquid phase 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; pure grade; distilled.
   (2) Source not specified; pure grade; distilled.
   (3) Twice distilled.

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.