Solubility System: Nitroethane with 2,2’-Iminobisethanol and Cyclohexane
Components:

(1) Nitroethane, C2H5NO2; [79-24-3] NIST WebBook
(2) 2,2'-Iminobisethanol, C4H11NO2; [111-42-2] NIST WebBook
(3) Cyclohexane, C6H12; [110-82-7] NIST WebBook

Original Measurements

Erofeeva, L. F.; Yunnikova, N. V.; Sb. Nauch. Tr.; Kuzbas. Polytekh. Inst. 26, 7-11 (1971).

Variables:

Ambient temperature: 279 - 368 K

Prepared by:

N.I. Lisov, N.V. Sazonov, V.P. Sazonov

Method/Apparatus/Procedure:

Two methods were used. The solubility temperatures are determined by the synthetic method. The analytical method was used for determining of equilibrium liquid phase composition. 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 reagent; distilled.
  2. Source not specified; pure grade reagent.
  3. Source not specified; pure grade reagent; distilled.
Estimated Errors:

Ambient temperature: Not specified.
Mass concentration (m/v) (1): Not specified.

Experimental Values:
Note: The solubility temperatures of liquid phases were determined in ternary mixtures with a constant mass content of (2), respectively 30.0, 50.0 and 70.0 mass %, and in ternary mixtures with a constant mass relationship of (1) and (3), respectively 30.0:70.0, 50.0:50.0, 70.0:30.0, 80.0:20.0 and 90.0:10.0 (see Tables 1-3).
Table 1. Solubility temperatures of the three liquid phases
T (°C) T (K) 100w1 100w2 x1 x2
5.5 278.7 60.0 30.0 6.64 x 10-1 2.37 x 10-1
8.1 281.3 10.0 30.0 1.18 x 10-1 2.52 x 10-1
15.0 288.2 50.0 30.0 5.60 x 10-1 2.40 x 10-1
20.2 293.4 20.0 30.0 2.33 x 10-1 2.49 x 10-1
22.5 295.7 40.0 30.0 4.54 x 10-1 2.43 x 10-1
23.9 297.1 30.0 30.0 3.44 x 10-1 2.46 x 10-1
9.5 282.7 10.0 50.0 1.23 x 10-1 4.39 x 10-1
16.1 289.3 35.0 50.0 4.16 x 10-1 4.25 x 10-1
20.1 293.3 15.0 50.0 1.83 x 10-1 4.36 x 10-1
22.0 295.2 30.0 50.0 3.59 x 10-1 4.27 x 10-1
23.9 297.1 25.0 50.0 3.01 x 10-1 4.30 x 10-1
23.9 297.1 20.0 50.0 2.43 x 10-1 4.33 x 10-1
17.5 290.7 10.0 70.0 1.29 x 10-1 6.42 x 10-1
19.1 292.3 20.0 70.0 2.54 x 10-1 6.33 x 10-1
23.9 297.1 15.0 70.0 1.91 x 10-1 6.38 x 10-1

Table 2. Solubility temperatures of the two liquid phases
T (°C) T (K) 100w1 100w2 x1 x2
40.5 313.7 9 x 10-1 97.0 1.2 x 10-2 9.62 x 10-1
42.0 315.2 29.9 3 x 10-1 3.24 x 10-1 2 x 10-3
60.0 333.2 1.0 96.5 1.4 x 10-2 9.55 x 10-1
77.0 350.2 1.5 95.0 2.1 x 10-2 9.36 x 10-1
81.5 354.7 29.5 1.5 3.20 x 10-1 1.2 x 10-2
88.0 361.2 2.4 92.0 3.3 x 10-2 8.99 x 10-1
89.0 362.2 29.4 2.0 3.19 x 10-1 1.6 x 10-2
39.0 312.2 2.5 95.0 3.4 x 10-2 9.35 x 10-1
56.2 329.4 49.7 6 x 10-1 5.26 x 10-1 5 x 10-3
62.0 335.2 49.4 1.2 5.24 x 10-1 9 x 10-3
80.0 353.2 4.5 91.0 6.1 x 10-2 8.84 x 10-1
82.0 363.2 48.3 3.5 5.14 x 10-1 2.7 x 10-2
90.0 363.2 47.3 5.5 5.06 x 10-1 4.2 x 10-2
90.0 363.2 5.0 90.0 6.8 x 10-2 8.72 x 10-1
49.0 322.2 7.0 90.0 9.5 x 10-2 8.69 x 10-1
63.5 336.7 68.9 1.6 7.15 x 10-1 1.2 x 10-2
77.0 350.2 68.3 2.5 7.10 x 10-1 1.9 x 10-2
80.0 353.2 9.8 86.0 1.31 x 10-1 8.19 x 10-1
90.0 363.2 10.9 84.5 1.45 x 10-1 8.01 x 10-1
91.0 364.2 66.1 5.6 6.93 x 10-1 4.2 x 10-2
33.5 306.7 10.8 86.5 1.44 x 10-1 8.24 x 10-1
43.6 316.8 79.0 1.2 8.10 x 10-1 9 x 10-3
62.5 335.7 78.3 2.1 8.05 x 10-1 1.5 x 10-2
79.0 352.2 76.4 4.5 7.91 x 10-1 3.3 x 10-2
82.0 355.2 20.0 75.0 2.56 x 10-1 6.86 x 10-1
89.0 362.2 72.9 8.9 7.63 x 10-1 6.7 x 10-2
90.0 363.2 23.2 71.0 2.93 x 10-1 6.41 x 10-1
33.2 306.4 20.4 77.3 2.63 x 10-1 7.11 x 10-1
51.0 324.2 21.9 75.7 2.80 x 10-1 6.92 x 10-1
59.5 332.7 88.5 1.7 8.99 x 10-1 1.2 x 10-2
60.0 333.2 23.4 74.0 2.98 x 10-1 6.73 x 10-1
70.0 343.2 26.6 70.4 3.34 x 10-1 6.32 x 10-1
71.8 345.0 85.6 4.9 8.77 x 10-1 3.6 x 10-2
80.0 353.2 31.6 64.9 3.90 x 10-1 5.72 x 10-1
82.1 355.3 81.3 9.7 8.45 x 10-1 7.2 x 10-2
85.9 359.1 36.0 60.0 4.37 x 10-1 5.20 x 10-1
87.2 360.4 76.4 15.1 8.06 x 10-1 1.14 x 10-1
90.1 363.3 71.5 20.5 7.67 x 10-1 1.57 x 10-1
92.1 365.3 45.0 50.0 5.29 x 10-1 4.19 x 10-1
95.0 368.2 63.0 30.0 6.95 x 10-1 2.36 x 10-1
95.0 368.2 54.0 40.0 6.14 x 10-1 3.25 x 10-1

Table 3. Compositions of two and three coexisting liquid phases system*
T (°C) T (K) 100w1 100w2 x1 x2
20.0 293.2 61.4 7 x 10-1 6.42 x 10-1 5 x 10-3
20.0 293.2 67.5 7 x 10-1 7.01 x 10-1 5 x 10-3
20.0 293.2 75.7 8 x 10-1 7.78 x 10-1 6 x 10-3
20.0 293.2 86.1 1.0 8.76 x 10-1 7 x 10-3
20.0 293.2 - - - -
20.0 293.2 - - - -

(*) The compilers extracted these data from the published graphs.

Table 4. Compositions of two and three coexisting liquid phases system*
T (°C) T (K) 100w1 100w2 x1 x2
20.0 293.2 7.2 90.9 9.8 x 10-2 8.79 x 10-1
20.0 293.2 12.4 86.2 1.65 x 10-1 8.18 x 10-1
20.0 293.2 17.5 81.4 2.28 x 10-1 7.59 x 10-1
20.0 293.2 20.6 78.4 2.66 x 10-1 7.23 x 10-1
20.0 293.2 3.3 94.8 4.5 x 10-2 9.31 x 10-1
20.0 293.2 1.6 96.9 2.2 x 10-2 9.59 x 10-1

Table 5. Compositions of two and three coexisting liquid phases system*
T (°C) T (K) 100w1 100w2 x1 x2
20.0 293.2 23.7 6 x 10-1 2.59 x 10-1 5 x 10-3
20.0 293.2 - - - -
20.0 293.2 - - - -
20.0 293.2 - - - -
20.0 293.2 16.5 5 x 10-1 1.81 x 10-1 4 x 10-3
20.0 293.2 7.2 4 x 10-1 8.0 x 10-2 3 x 10-3

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