SDS Volume
Volume 71. Nitromethane with Water or Organic Solvents, p 1329
Source Publication
Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; J. Am. Oil Chem. Soc. 42, 372 (1965).
Conditions:
Room Temp: 441 - 471 $\pu{K}$
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 disapperance 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
-
Cholest-5-en-3-yldodecanoate $\ce{ C39H68O2 }$
[11/8/08];
NIST WebBook
Cholest-5-en-3-yltetradecanoate $\ce{ C41H72O2 }$ [1989-52-2]; NIST WebBook
Cholest-5-en-3-ylhexadecanoate $\ce{ C43H76O2 }$ [601-34-3]; NIST WebBook
Cholest-5-en-3-yloctadecanoate $\ce{ C45H80O2 }$ [35602-69-8]; NIST WebBook
Cholest-5-en-3-yleicosanoate $\ce{ C47H84O2 }$ [3/7/73]; NIST WebBook
Cholest-5-en-3-yldocosanoate $\ce{ C49H88O2 }$ [61510-09-6]; NIST WebBook
Experimental Data
Upper critical solution temperatures of the systems nitromethane (1) with cholesteryl esters (2)
| Cholesteryl esters ($\ce{C39H68O2} - \ce{C49H88O2}$) | $T$ (°C) | $T$ ($\pu{K}$) |
|---|---|---|
Cholest-5-en-3-yldodecanoate
(
 )
|
168.0 | 441.2 |
|
Cholest-5-en-3-yltetradecanoate
(
)
|
175.0 | 448.2 |
|
Cholest-5-en-3-ylhexadecanoate
(
)
|
181.5 | 454.7 |
|
Cholest-5-en-3-yloctadecanoate
(
)
|
187.0 | 460.2 |
|
Cholest-5-en-3-yleicosanoate
(
)
|
192.0 | 465.2 |
|
Cholest-5-en-3-yldocosanoate
(
)
|
197.5 | 470.7 |