Solubility System: Nitroethane with Hexadecanenitrile (Original Report)

Variables:
Temperature: 233 K - 303 K
Experimental Remarks:
The solubilities of hexadecanenitrile (2) in nitroethane (1) in mass percent over the temperature range were presented in graphical form and in a table.
Experimental Data:
Table 1
T (°C)T (K)s2 w2 x2
-40.0233.210100.0003
-20.0253.21001000.0032
-18.4*254.8-1100.0035
-7.1*266.1- 3.5 x 1020.011
0273.2 6.6 x 102 6.2 x 1020.021
1.0*274.2- 6.8 x 1020.023
7.3*280.5-12.1 x 1020.042
10.0283.2 20.2 x 10216.8 x 1020.06
12.6*285.8-24.7 x 1020.094
16.4*289.6-40.0 x 1020.174
20.0293.2 127 x 10255.9 x 1020.286
21.8*295.0-63.6 x 1020.356
24.8*298.0-77.5 x 1020.521
26.4*299.6-84.1 x 1020.626
30.0303.22850 x 10296.6 x 1020.9

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

Method/Apparatus/Procedure:

The synthetic method was used. Solution temperatures were determined by cooling 3 - 5 g portions of solution in 1 cm×15 cm test tubes, which were placed in an air-bath. The latter was immersed in an acetone-bath, which was cooled with solid carbon dioxide. Temperature within the samples was measured by means of a potentiometer with an iron-constantan thermocouple. As the nitrile crystallized from solution upon cooling, the temperature of the air-bath was raised gradually until the mixtures redissolved.

Source and Purity of Materials:

(1) Source not specified; best grade reagent; dried and twice distilled.
(2) Prepared by passing the hexadecanoic acid over aluminium oxide in the presence of ammonia at 400°C; dried and purified by vacuum distillation in a Stedman packed column; f. p. = 31.40°C.

Estimated Errors

Temperature: ±0.4 K (below 248 K), ±0.2 K (above 248 K).

References:

No references.

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