SDS Volume
Volume 71. Nitromethane with Water or Organic Solvents, p 1327
Source Publication
Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; J. Am. Oil Chem. Soc. 42, 372 (1965).
Conditions:
Room Temp: 321 - 426 $\pu{K}$
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 in to 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
-
Hexadecyl ethanoate $\ce{ C18H36O2 }$
[629-70-9];
NIST WebBook
Hexadecyl butanoate $\ce{ C20H40O2 }$ [6221-99-4]; NIST WebBook
Hexadecyl hexanoate $\ce{ C22H44O2 }$ [14331-11-4]; NIST WebBook
Hexadecyl octanoate $\ce{ C24H48O2 }$ [29710-31-4]; NIST WebBook
Hexadecyl decanoate $\ce{ C26H52O2 }$ [29710-34-7]; NIST WebBook
Hexadecyl dodecanoate $\ce{ C28H56O2 }$ [20834-06-4]; NIST WebBook
Hexadecyl tetradecanoate $\ce{ C30H60O2 }$ [1/1/99]; NIST WebBook
Hexadecyl hexadecanoate $\ce{ C32H64O2 }$ [540-10-3]; NIST WebBook
Hexadecyl octadecanoate $\ce{ C34H68O2 }$ [1190-63-2]; NIST WebBook
Experimental Data
Upper critical solution temperatures of the systems nitromethane (1) with hexadecyl esters (2)
| Hexadecyl esters ($\ce{C18H36O2} - \ce{C34H68O2}$) | $T$ (°C) | $T$ ($\pu{K}$) |
|---|---|---|
Hexadecyl ethanoate
(
 )
|
47.5 | 320.7 |
|
Hexadecyl butanoate
(
)
|
79.0 | 352.2 |
|
Hexadecyl hexanoate
(
)
|
95.0 | 368.2 |
|
Hexadecyl octanoate
(
)
|
108.0 | 381.2 |
|
Hexadecyl decanoate
(
)
|
119.0 | 392.2 |
|
Hexadecyl dodecanoate
(
)
|
128.0 | 401.2 |
|
Hexadecyl tetradecanoate
(
)
|
136.5 | 409.7 |
|
Hexadecyl hexadecanoate
(
)
|
145.0 | 418.2 |
|
Hexadecyl octadecanoate
(
)
|
152.5 | 425.7 |