SDS Volume
Volume 71. Nitromethane with Water or Organic Solvents, p 1334
Source Publication
Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; J. Am. Oil Chem. Soc. 42, 372 (1965).
Conditions:
Room Temp: 315 - 343 $\pu{K}$
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, $\rho^{20} = \pu{1134 g L-1}$.
- Not specified.
Measurement Errors:
Ambient temperature: ±0.5 K.
System Components:
- Nitromethane $\ce{ CH3NO2 }$ [75-52-5]; NIST WebBook
-
1-Dodecanoyloxy-2,3-propanediol $\ce{ C15H30O4 }$
[142-18-7];
NIST WebBook
1-Tetradecanoyloxy-2,3-propanediol $\ce{ C17H34O4 }$ [589-68-4]; NIST WebBook
1-Hexadecanoyloxy-2,3-propanediol $\ce{ C19H38O4 }$ [542-44-9]; NIST WebBook
1-Octadecanoyloxy-2,3-propanediol $\ce{ C21H42O4 }$ [123-94-4]; NIST WebBook
Experimental Data
Upper critical solution temperatures of the systems nitromethane (1) with 1-monoglycerides (2)
| 1-Monoglycerides (x4) | $T$ (°C) | $T$ ($\pu{K}$) |
|---|---|---|
1-Dodecanoyloxy-2,3-propanediol
(
 )
|
42.0 | 315.2 |
|
1-Tetradecanoyloxy-2,3-propanediol
(
)
|
54.0 | 327.2 |
|
1-Hexadecanoyloxy-2,3-propanediol
(
)
|
63.0 | 336.2 |
|
1-Octadecanoyloxy-2,3-propanediol
(
)
|
70.0 | 343.2 |