SDS Volume
Volume 71. Nitromethane with Water or Organic Solvents, p 1317
Source Publication
Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; Microchem. J. 7, 287-96 (1963).
Conditions:
Room Temp: 318 - 398 $\pu{K}$
Compiler:
Methodology:
The synthetic method was used. A Reichert microscope, type RCH, with a heating stage was used. A 26 x 38 mm slide was adapted to hold capillaries on the stage. Two glass strips were glued, using water glass, to the slide, leaving a 0.5 mm channel. The slide was then placed in the adjustable device of the heating stage. (1) and (2) were put into capillary tubing (0.2-0.3 mm diameter) by dipping consecutively into both liquids. The height of the liquid was 7-10 mm. Room temperature solids were melted on a glass slide over a microburner. The capillary was sealed at both ends to a length of 30-35 mm, then inserted into the channel on the slide and heated on the stage. The UCST was determined by following the appearance and disappearance of the meniscus.
Sample Information:
- Fisher Scientific Co.; certified, No. N-98; $n_{D}^{20}$ = 1.3820, $\rho^{20} = \pu{1134 g L-1}$.
- Obtained from the Hormel Foundation; purified by gas-liquid partition and thin-layer adsorption chromatography.
Measurement Errors:
Ambient temperature: ±0.5 K.
System Components:
- Nitromethane $\ce{ CH3NO2 }$ [75-52-5]; NIST WebBook
-
Docosahexaenoic acid $\ce{ C22H32O2 }$
[25167-62-8];
NIST WebBook
Hexadecatrienoic acid $\ce{ C16H26O2 }$ [29428-96-4]; NIST WebBook
Eicosapentaenoic acid $\ce{ C20H30O2 }$ [25378-27-2]; NIST WebBook
9,12,15-Octadecatrienoic acid $\ce{ C18H30O2 }$ [463-40-1]; NIST WebBook
Eicosatetraenoic acid $\ce{ C20H32O2 }$ [506-32-1]; NIST WebBook
Hexadecadienoic acid $\ce{ C16H28O2 }$ [28933-88-2]; NIST WebBook
9, 12-Octadecadienoic acid $\ce{ C18H32O2 }$ [60-33-3]; NIST WebBook
9-Hexadecenoic acid $\ce{ C16H30O2 }$ [373-49-9]; NIST WebBook
6-Octadecenoic acid $\ce{ C18H34O2 }$ [593-39-5]; NIST WebBook
cis-9-Octadecenoic acid $\ce{ C18H34O2 }$ [112-80-1]; NIST WebBook
trans-9-Octadecenoic acid $\ce{ C18H34O2 }$ [112-79-8]; NIST WebBook
11-Eicosenoic acid $\ce{ C20H38O2 }$ [5561-99-9]; NIST WebBook
13-Docosenoic acid $\ce{ C22H42O2 }$ [112-86-7]; NIST WebBook
15-Tetracosenoic acid $\ce{ C24H46O2 }$ [506-37-6]; NIST WebBook
Experimental Data
Upper critical solution temperatures of the systems nitromethane (1) with unsaturated fatty acids (2)
| Unsaturated fatty acids ($\ce{C16H26O2} – \ce{C24H46O2}$) | $T$ (°C) | $T$ ($\pu{K}$) |
|---|---|---|
Docosahexaenoic acid
(
 )
|
44.5 | 317.7 |
|
Hexadecatrienoic acid
(
)
|
46.0 | 319.2 |
|
Eicosapentaenoic acid
(
)
|
46.5 | 319.7 |
|
9,12,15-Octadecatrienoic acid
(
)
|
64.0 | 337.2 |
|
Eicosatetraenoic acid
(
)
|
64.5 | 337.7 |
|
Hexadecadienoic acid
(
)
|
66.0 | 339.2 |
|
9, 12-Octadecadienoic acid
(
)
|
80.0 | 353.2 |
|
9-Hexadecenoic acid
(
)
|
84.0 | 357.2 |
|
6-Octadecenoic acid
(
)
|
96.0 | 369.2 |
|
cis-9-Octadecenoic acid
(
)
|
96.5 | 369.7 |
|
trans-9-Octadecenoic acid
(
)
|
100.0 | 373.2 |
|
11-Eicosenoic acid
(
)
|
106.0 | 379.2 |
|
13-Docosenoic acid
(
)
|
116.0 | 389.2 |
|
15-Tetracosenoic acid
(
)
|
125.0 | 398.2 |