IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Nitromethane with 1-Pentanol and Water

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Components:
   (1) 1-Pentanol; C5H12O; [71-41-0]  NIST Chemistry WebBook for detail
   (2) Nitromethane; CH3NO2 ; [75-52-5]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Zhuravleva, I. K.; Zhuravlev, E. F. and Lomakina, N. G.; Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol. 18, 449 (1975). *Deposited doc., VINITI 1966 (1974).

Variables:
   Temperature = 274 K and 355 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, 19.9:80.1, 29.9:70.1, 39.9:60.1, 50.0:50.0, 60.0:40.0, 69.9:30.1, 78.7:21.3 and 89.2:10.8, respectively.

The compositions of coexistent two and three liquid phases at 11 °C and 17 °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)
1.5	274.7	0.870	0.105	0.847	0.071
2.0	275.2	0.874	0.106	0.861	0.072
5.0	278.2	0.879	0.106	0.876	0.073
15.0	288.2	0.864	0.105	0.827	0.069
26.0	299.2	0.857	0.104	0.808	0.068
32.0	305.2	0.852	0.103	0.792	0.066
43.0	316.2	0.844	0.102	0.769	0.065
47.0	320.2	0.839	0.102	0.757	0.063
51.0	324.2	0.832	0.101	0.737	0.062
56.0	329.2	0.823	0.100	0.714	0.060
58.0	331.2	0.822	0.099	0.709	0.059
59.0	332.2	0.086	0.010	0.027	0.002
63.0	336.2	0.816	0.099	0.696	0.058
67.0	340.2	0.810	0.098	0.681	0.057
10.0	283.2	0.761	0.206	0.749	0.141
12.0	285.2	0.756	0.205	0.732	0.137
12.0	285.2	0.769	0.208	0.776	0.145
15.0	288.2	0.776	0.210	0.801	0.150
18.0	291.2	0.782	0.212	0.824	0.154
21.5	294.7	0.749	0.203	0.712	0.134
29.8	303.0	0.743	0.201	0.693	0.130
35.9	309.1	0.737	0.199	0.675	0.127
42.0	315.2	0.731	0.198	0.660	0.124
48.0	321.2	0.726	0.196	0.644	0.121
52.0	325.2	0.721	0.195	0.630	0.118
58.0	331.2	0.716	0.194	0.618	0.116
60.0	333.2	0.711	0.192	0.606	0.114
63.0	336.2	0.706	0.191	0.595	0.112
63.0	336.2	0.068	0.019	0.021	0.004
66.0	339.2	0.701	0.190	0.583	0.109
67.0	340.2	0.075	0.020	0.024	0.004
69.5	342.7	0.696	0.188	0.571	0.107
12.0	285.2	0.668	0.288	0.657	0.196
13.0	286.2	0.673	0.290	0.674	0.201
15.0	288.2	0.683	0.294	0.708	0.211
15.5	288.7	0.662	0.285	0.637	0.190
17.0	290.2	0.686	0.295	0.717	0.215
19.0	292.2	0.690	0.297	0.734	0.219
21.0	294.2	0.657	0.283	0.622	0.185
22.0	295.2	0.696	0.308	0.751	0.231
26.0	299.2	0.653	0.281	0.610	0.182
35.0	308.2	0.646	0.278	0.589	0.176
40.0	313.2	0.641	0.276	0.576	0.172
44.0	317.2	0.637	0.274	0.565	0.168
49.0	322.2	0.632	0.272	0.552	0.164
53.0	326.2	0.627	0.270	0.539	0.161
58.0	331.2	0.619	0.266	0.519	0.155
60.5	333.7	0.618	0.266	0.517	0.154
11.5	284.7	0.560	0.373	0.536	0.247
12.0	285.2	0.565	0.376	0.551	0.254
13.0	286.2	0.568	0.379	0.563	0.260
15.0	288.2	0.574	0.383	0.583	0.269
16.0	289.2	0.577	0.385	0.594	0.274
18.0	291.2	0.584	0.389	0.618	0.285
18.0	291.2	0.554	0.370	0.519	0.240
20.5	293.7	0.590	0.393	0.641	0.297
23.0	296.2	0.595	0.396	0.661	0.305
26.0	299.2	0.551	0.367	0.509	0.235
30.0	303.2	0.547	0.364	0.497	0.229
42.0	315.2	0.537	0.358	0.471	0.217
50.5	323.7	0.531	0.354	0.456	0.210
57.7	330.9	0.520	0.346	0.428	0.198
71.0	344.2	0.503	0.336	0.393	0.181
12.5	285.7	0.468	0.468	0.464	0.321
13.0	286.2	0.496	0.496	0.572	0.396
13.0	286.2	0.471	0.471	0.476	0.329
14.0	287.2	0.475	0.475	0.490	0.339
14.5	287.7	0.464	0.464	0.453	0.313
15.0	288.2	0.479	0.479	0.505	0.349
17.0	290.2	0.484	0.484	0.522	0.361
17.0	290.2	0.460	0.460	0.438	0.304
19.0	292.2	0.489	0.489	0.542	0.375
20.0	293.2	0.456	0.456	0.426	0.295
20.5	293.7	0.491	0.491	0.551	0.381
25.0	298.2	0.451	0.451	0.412	0.285
31.0	304.2	0.448	0.448	0.405	0.280
36.0	309.2	0.445	0.445	0.397	0.275
41.5	314.7	0.441	0.441	0.385	0.266
47.0	320.2	0.438	0.438	0.377	0.261
52.0	325.2	0.435	0.435	0.370	0.256
62.0	335.2	0.430	0.430	0.358	0.248
66.0	339.2	0.427	0.427	0.352	0.244
69.0	342.2	0.423	0.423	0.342	0.237
82.0	355.2	0.035	0.035	0.011	0.008
11.5	284.7	0.366	0.551	0.356	0.371
12.0	285.2	0.369	0.557	0.368	0.383
12.0	285.2	0.362	0.546	0.345	0.359
13.0	286.2	0.373	0.562	0.380	0.396
14.0	287.2	0.377	0.568	0.394	0.411
15.0	288.2	0.381	0.573	0.408	0.425
17.0	290.2	0.383	0.578	0.419	0.437
19.0	292.2	0.387	0.583	0.434	0.452
20.0	293.2	0.359	0.542	0.336	0.351
20.5	293.7	0.390	0.588	0.448	0.467
22.5	295.7	0.393	0.593	0.462	0.482
24.0	297.2	0.397	0.598	0.479	0.500
26.0	299.2	0.355	0.536	0.324	0.339
35.0	308.2	0.353	0.532	0.320	0.332
35.0	308.2	0.353	0.532	0.320	0.332
39.8	313.0	0.351	0.529	0.312	0.326
44.0	317.2	0.349	0.525	0.306	0.319
54.0	327.2	0.344	0.519	0.295	0.308
61.0	334.2	0.339	0.510	0.282	0.293
66.0	339.2	0.337	0.507	0.277	0.289
8.0	281.2	0.273	0.639	0.269	0.437
9.0	282.2	0.277	0.650	0.284	0.462
11.5	284.7	0.283	0.665	0.308	0.500
15.0	288.2	0.289	0.676	0.330	0.535
19.0	292.2	0.294	0.689	0.355	0.576
21.0	294.2	0.267	0.626	0.251	0.408
33.5	306.7	0.264	0.620	0.243	0.395
38.0	311.2	0.262	0.614	0.237	0.384
44.0	317.2	0.261	0.611	0.233	0.379
52.0	325.2	0.259	0.606	0.228	0.370
61.0	334.2	0.256	0.600	0.221	0.359
68.0	341.2	0.254	0.594	0.215	0.349
3.0	276.2	0.187	0.754	0.206	0.574
4.0	277.2	0.179	0.723	0.177	0.495
5.0	278.2	0.189	0.763	0.216	0.600
7.0	280.2	0.191	0.771	0.224	0.625
9.0	282.2	0.193	0.778	0.233	0.649
11.0	284.2	0.195	0.787	0.244	0.680
14.0	287.2	0.197	0.792	0.252	0.701
19.0	292.2	0.177	0.715	0.171	0.477
26.0	299.2	0.176	0.708	0.166	0.463
31.0	304.2	0.176	0.706	0.165	0.459
43.0	316.2	0.174	0.700	0.160	0.447
50.0	323.2	0.173	0.697	0.158	0.440
60.5	333.7	0.171	0.687	0.151	0.422
3.0	276.2	0.091	0.820	0.095	0.591
12.0	285.2	0.090	0.811	0.091	0.569
30.5	303.7	0.089	0.805	0.089	0.554
47.0	320.2	0.089	0.799	0.087	0.542
52.0	325.2	0.088	0.794	0.085	0.530
61.0	334.2	0.088	0.788	0.083	0.518
67.0	340.2	0.087	0.787	0.081	0.508

Table 2. Compositions of three coexisting liquid phases system nitromethane + 1-pentanol + water*

t/°C	T/K	Mass Fraction w1	Mass Fraction w2	Mole Fraction x1	Mole Fraction x2	Comment(s)
11	284	0.554	0.389	0.545	0.265	nitromethane-rich phase
11	284	0.446	0.473	0.426	0.313	alcohol-rich phase
11	284	0.051	0.026	0.016	0.006	water-rich phase

Notes:
   Table 2  ^*  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; purified; b. p. = 101.3 °C; n(20 °C, D) = 1.3820, d(20 °C, 4 °C) = 1.1320.
   (2) Source not specified; purified; b. p. = 138 °C; n(20 °C, D) = 1.4100, d(20 °C, 4 °C) = 0.8144.
   (3) Twice distilled; n(20 °C, D) = 1.3333.

Estimated Errors:

   Temperature: not specified

References:
   ¹V. F. Alekseev, Zh. Russ. Fiz.-Khim. O-va 8, 249(1876).
   ²N. I. Nikurashina and R. V. Mertslin, Method of Secants (in Russian), Saratov University, 1969.

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