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Solubility System: Nitroethane with Hexane (Original Report)

Variables:
Temperature: 276 K - 302 K
Experimental Data:
T (°C)T (K)w1 x1
2.90276.05 7.9 x 10-20.09
9.40282.5510.6 x 10-20.12
13.65286.8012.4 x 10-20.14
19.95293.1018.2 x 10-20.203
24.00297.1523.1 x 10-20.256
24.1a297.2522.63 x 10-20.251
25.30298.4525.7 x 10-20.284
26.1a299.25--
26.25299.4026.6 x 10-20.294
27.20300.3530.2 x 10-20.332
27.4a300.55--
27.8a300.9530.5 x 10-20.335
28.3a301.45--
28.7a301.8533.9 x 10-20.371
29.2a302.3539.83 x 10-20.432
29.3a302.4542.97 x 10-20.464
29.30302.45--
T (°C)T (K)w1 x1
2.90276.0589.9 x 10-20.911
9.40282.5586.4 x 10-20.879
13.65286.80--
19.95293.1078.6 x 10-20.808
24.00297.1573.5 x 10-20.761
24.1a297.25--
25.30298.4571.0 x 10-20.738
26.1a299.2568.42 x 10-20.713
26.25299.4069.0 x 10-20.719
27.20300.3567.6 x 10-20.706
27.4a300.5565.13 x 10-20.682
27.8a300.95--
28.3a301.4561.63 x 10-20.648
28.7a301.85--
29.2a302.3554.45 x 10-20.579
29.3a302.4548.48 x 10-20.519
29.30302.45-- (UCST)

a) Obtained by synthetic method. All other data obtained by the analytical method.

Method/Apparatus/Procedure:

The synthetic and analytical methods were used as described in Vold and Vold.1 The analytical method consisted of withdrawing a sample from each of the coexisting phases from an equilibrium cell in a constant temperature bath, and analyzing the samples by gas chromatographic techniques. The temperature of the bath was controlled to ±0.05 K.

Source and Purity of Materials:

(1) Commercial Solvents Corp.; purity 96 mole% with 3.9 mole% of 2-nitropropane; not purified.
(2) Phillips Petroleum Co.; purity > 99 mole%; not purified.

Estimated Errors

Temperature: to ±0.1 K (synthetic method).
Solubility: Composition: ±0.5 mass% (analytical method).

References:

(1) R. D. Vold and M. J. Vold, Physical Methods of Organic Chemistry, Vol. 1 (Interscience, New York, 1945).

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