IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with 1-Nonanol and Water

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Components:
   (1) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (2) 1-Nonanol; C9H20O; [143-08-8]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Sazonov, V. P. and Chernysheva, M. F.; Zh. Fiz. Khim. 49, 2463 (1975); Sazonov, V. P. and Chernysheva, M. F.; Zh. Obshch. Khim. 46, 997 (1976).

Variables:
   Temperature = 293 K to 439 K

Prepared By:
   V. P. Sazonov and N. V. Sazonov

Experimental Remarks:

   The temperatures of phase transitions were determined in ternary mixtures with a constant mass relationship of (1) and (2), respectively, 20.0:80.0, 40.0:60.0, 55.0:45.0, 70.0:30.0, and 85.0:15.0. L₁ nitromethane-rich phase; L₂ alcohol-rich phase; L₃ water-rich phase. The phase which is being dissolved is indicated in the table.

Experimental Data:   (Notes on the Nomenclature)
  

Table 1. Solubility temperatures of three liquid phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)
20.30 (L3)	293.45	0.1916	0.7664	0.2911	0.4927
23.71 (L1)	296.86	0.1200	0.4800	0.0715	0.1210
30.00 (L3)	303.15	0.1901	0.7606	0.2800	0.4740
30.02 (L1)	303.17	0.1498	0.5992	0.1195	0.2023
33.10 (L1)	306.25	0.1800	0.7200	0.2186	0.3700
33.60 (L1)	306.75	0.1865	0.7460	0.2552	0.4319
33.65 (L1)	306.80	0.1883	0.7534	0.2672	0.4525
33.71 (L1)	306.86	0.1887	0.7546	0.2695	0.4561
24.60 (L3)	297.75	0.3858	0.5786	0.5136	0.3259
30.06 (L3)	303.21	0.3832	0.5749	0.4987	0.3166
34.85 (L3)	308.00	0.3809	0.5713	0.4855	0.3081
38.16 (L1)	311.31	0.1604	0.2406	0.0700	0.0444
41.04 (L3)	314.19	0.3785	0.5677	0.4726	0.2999
42.53 (L1)	315.68	0.2408	0.3612	0.1383	0.0877
43.50 (L1)	316.65	0.3004	0.4506	0.2251	0.1429
43.90 (L1)	317.05	0.3596	0.5394	0.3867	0.2454
43.90 (L1)	317.05	0.3724	0.5587	0.4422	0.2807
43.90 (L1)	317.05	0.3760	0.5640	0.4597	0.2918
22.82 (L3)	295.97	0.5306	0.4341	0.6363	0.2203
24.78 (L1)	377.93	0.1111	0.0909	0.0389	0.0135
33.32 (L3)	306.47	0.5271	0.4312	0.6195	0.2145
39.51 (L3)	312.66	0.5237	0.4284	0.6039	0.2090
44.06 (L3)	317.21	0.5205	0.4258	0.5898	0.2041
44.44 (L1)	317.5	0.2206	0.1805	0.0949	0.0328
44.97 (L1)	318.12	0.3306	0.2705	0.1840	0.0637
44.98 (L1)	318.13	0.4125	0.3375	0.2942	0.1018
44.98 (L1)	318.13	0.4950	0.4050	0.4925	0.1705
44.98 (L1)	318.13	0.5122	0.4190	0.5552	0.1922
44.98 (L1)	318.13	0.5152	0.4216	0.5676	0.1965
22.50 (L3)	295.65	0.6796	0.2913	0.7539	0.1367
30.13 (L3)	303.28	0.6752	0.2894	0.7359	0.1334
37.60 (L3)	310.75	0.6701	0.2872	0.7157	0.1298
42.25 (L1)	315.40	0.1442	0.0618	0.0504	0.0091
42.59 (L2)	315.74	0.6655	0.2852	0.6982	0.1266
44.50 (L2)	317.65	0.6621	0.2837	0.6856	0.1243
44.50 (L2)	317.65	0.6586	0.2823	0.6732	0.1221
44.51 (L2)	317.66	0.6293	0.2697	0.5797	0.1051
44.66 (L2)	317.81	0.5250	0.2250	0.3579	0.0649
44.76 (L2)	317.91	0.4207	0.1803	0.2276	0.0413
44.93 (L2)	318.08	0.2800	0.1200	0.1185	0.0215
32.43 (L3)	305.58	0.8199	0.1447	0.8190	0.0612
37.60 (L3)	310.75	0.8147	0.1438	0.8018	0.0599
38.23 (L2)	311.38	0.8122	0.1433	0.7935	0.0592
38.23 (L2)	311.38	0.8058	0.1422	0.7733	0.0577
38.41 (L2)	311.56	0.7731	0.1364	0.6797	0.0508
38.98 (L2)	312.13	0.6511	0.1149	0.4363	0.0326
40.92 (L2)	314.07	0.5125	0.0905	0.2704	0.0202
41.01 (L2)	314.16	0.3392	0.0598	0.1413	0.0105
44.94 (L2)	315.09	0.1768	0.0312	0.0615	0.0046

Table 2. Solubility temperatures of two liquid phases

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1 (compiler)	Mole Fraction x2 (compiler)
34.22	307.37	0.1901	0.7606	0.2800	0.4740
35.22	308.37	0.1916	0.7664	0.2911	0.4927
36.72	309.87	0.1930	0.7722	0.3027	0.5124
37.41	310.56	0.1938	0.7753	0.3093	0.5236
38.83	311.98	0.1951	0.7806	0.3210	0.5435
40.12	313.27	0.1964	0.7854	0.3327	0.5629
41.62	314.77	0.1975	0.7901	0.3442	0.5826
43.11	316.26	0.1987	0.7946	0.3563	0.6030
52.22	325.37	0.1887	0.7546	0.2695	0.4561
57.05	330.20	0.1883	0.7534	0.2672	0.4525
81.55	351.70	0.1865	0.7460	0.2552	0.4319
139.2	412.4	0.1800	0.7200	0.2186	0.3700
44.22	317.37	0.3785	0.5677	0.4726	0.2999
45.12	318.27	0.3809	0.5713	0.4855	0.3081
45.97	319.12	0.3832	0.5749	0.4987	0.3166
46.95	320.10	0.3858	0.5786	0.5136	0.3259
47.89	321.04	0.3880	0.5821	0.5275	0.3348
48.67	321.82	0.3897	0.5846	0.5382	0.3416
50.31	323.46	0.3760	0.5640	0.4597	0.2918
50.32	323.47	0.3930	0.5896	0.5603	0.3557
51.62	324.77	0.3953	0.5930	0.5764	0.3658
52.80	325.95	0.3976	0.5965	0.5935	0.3767
65.45	338.60	0.3724	0.5587	0.4422	0.2807
105.6	378.8	0.3596	0.5394	0.3867	0.2454
45.14 (a)	318.29	0.5205	0.4258	0.5898	0.2041
45.93 (a)	319.12	0.5237	0.4284	0.6039	0.2090
46.73 (a)	319.88	0.5271	0.4312	0.6196	0.2145
47.77 (a)	320.92	0.5306	0.4341	0.6363	0.2203
48.59 ( (a))	321.74	0.5332	0.4362	0.6491	0.2247
49.83 ( (a))	322.98	0.5370	0.4394	0.6688	0.2316
50.83 ( (a))	323.98	0.5398	0.4417	0.6838	0.2368
52.33 ( (a))	325.48	0.5432	0.4444	0.7025	0.2432
53.69 ( (a))	326.84	0.5473	0.4478	0.7265	0.2515
54.55	327.70	0.5152	0.4216	0.5676	0.1965
60.55	333.70	0.5122	0.4190	0.5552	0.1922
91.5	364.7	0.4950	0.4050	0.4925	0.1705
160.4	433.6	0.4125	0.3375	0.2942	0.1018
44.84	317.99	0.6655	0.2852	0.6982	0.1266
45.62	318.77	0.6701	0.2872	0.7157	0.1298
46.82	319.97	0.6752	0.2894	0.7359	0.1243
46.97	320.12	0.6621	0.2837	0.6856	0.1243
48.00	321.15	0.6796	0.2913	0.7539	0.1367
49.49	322.64	0.6853	0.2937	0.7781	0.1411
50.32	323.47	0.6882	0.2950	0.7911	0.1435
51.19	324.34	0.6913	0.2963	0.8051	0.1460
52.14	315.29	0.6586	0.2823	0.6732	0.1221
53.09	316.24	0.6966	0.2986	0.8301	0.1505
85.5	358.7	0.6293	0.2697	0.5797	0.1051
134.2	407.4	0.5250	0.2250	0.3579	0.0649
160.2	433.4	0.4207	0.1803	0.2276	0.0413
38.24	311.39	0.8147	0.1438	0.8018	0.0599
39.19	312.34	0.8199	0.1447	0.8190	0.0612
40.03	313.18	0.8238	0.1454	0.8324	0.0622
41.54	314.69	0.8322	0.1469	0.8622	0.0644
42.33	315.48	0.8122	0.1433	0.7935	0.0592
42.73	315.88	0.8375	0.1478	0.8817	0.0659
43.80	316.95	0.8424	0.1487	0.9002	0.0672
44.52	317.67	0.8448	0.1491	0.9098	0.0679
45.03	318.18	0.8475	0.1495	0.9203	0.0687
49.48	322.63	0.8058	0.1422	0.7733	0.0577
76.8	350.0	0.7731	0.1364	0.6797	0.0508
113.8	387.0	0.6511	0.1149	0.4363	0.0326
127.6	400.8	0.5126	0.0905	0.2704	0.0202
166.0	439.2	0.3592	0.0599	0.1413	0.0106

Notes:
   Table 2  ^a  Critical opalescence.

Method/Apparatus/Procedure:
   The synthetic method was used. Ampoules containing mixtures were suspended from a vertical roller linked to a shaking machine, which switched on at definite time intervals. Water bath temperature was controlled with a proportional temperature regulator and checked with mercury thermometers. Close to aphase transition, heating or cooling was effected at 0.03 °/h. Solubility temperature of the liquid phase was determined both with heating and cooling, and the average taken. The thermostat contained silicone oil above 80 °C.

Source and Purity of Materials:
   (1) Source not specified; pure grade reagent; dried and repeatedly distilled in a packed glass column; no impurities detectable by gas chromatography.
   (2) Source not specified; pure grade reagent; dried and repeatedly distilled at vacuum; 99.5 mole % purity.
   (3) Twice distilled.

Estimated Errors:

   Temperature: taking ± 0.01 K (293 K to 323 K); ± 0.05 K (323 K to 373 K) and ± 0.2 K (above 373 K).

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