SDS Volume (4319)

Volume 71. Nitromethane with Water or Organic Solvents, p None

Original Measurements

Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; Microchem. J. 9, 134-144 (1965).

Variables:

Room Temp: 336 - 357 $\pu{K}$

Prepared by:

V.P. Sazonov

Method/Apparatus/Procedure:

The synthetic method was used. A Reichert microscope, type RCH, equipped with a heating stage was used as described in Schmid, et al. [1]. The disappearance and reappearance of the interface between (1) and (2) could be observed without difficulty.

Source and Purity of Materials:
  1. Fisher Scientific Co.; certified, No. N-98; $n_{D}^{20}$ = 1.3820, $\rho^{20} = \pu{1134 g L-1}$.
  2. Methyl, ethyl and butyl esters purchased from Applied Science Laboratories; propyl and hexyl esters, formate, acetate, propanoate and butyrate prepared by direct esterification; other esters synthesized by transesterification; purified.
Estimated Errors:

Ambient temperature: ±0.5 K.

References

1 Schmid, H. H. O.; Mangold, H. K.; Lundberg, W. O.; J. Am. Oil Chem. Soc. 42, 372 (1965).

Components:
  1. Nitromethane, $\ce{ CH3NO2 }$; [75-52-5] NIST WebBook
  2. Ethyl octadecanoate, $\ce{ C20H40O2 }$; [111-61-5] NIST WebBook
  3. Nonadecyl formate, $\ce{ C20H40O2 }$; [66455-49-0] NIST WebBook
  4. Octadecyl acetate, $\ce{ C20H40O2 }$; [822-23-1] NIST WebBook
  5. Methyl nonadecanoate, $\ce{ C20H40O2 }$; [1731-94-8] NIST WebBook
  6. Heptadecyl propanoate, $\ce{ C20H40O2 }$; [66455-48-9] NIST WebBook
  7. Hexadecyl butanoate, $\ce{ C20H40O2 }$; [6221-99-4] NIST WebBook
  8. Propyl heptadecanoate, $\ce{ C20H40O2 }$; [26718-84-3] NIST WebBook
  9. Butyl hexadecanoate, $\ce{ C20H40O2 }$; [111-06-8] NIST WebBook
  10. Tetradecyl hexanoate, $\ce{ C20H40O2 }$; [71801-23-5] NIST WebBook
  11. Dodecyl octanoate, $\ce{ C20H40O2 }$; [20292-09-5] NIST WebBook
  12. Hexyl tetradecanoate, $\ce{ C20H40O2 }$; [42231-99-2] NIST WebBook
  13. Octyl dodecanoate, $\ce{ C20H40O2 }$; [5303-24-2] NIST WebBook
  14. Decyl decanoate, $\ce{ C20H40O2 }$; [1654-86-0] NIST WebBook
Experimental Data
Upper critical solution temperatures of the systems nitromethane + ester
$T$ (°C) $T$ ($\pu{K}$)
62.5335.7
65.0338.2
70.0343.2
75.0348.2
75.5348.7
79.0352.2
79.0352.2
81.0354.2
82.0355.2
83.0356.2
83.0356.2
83.5356.7
83.5356.7

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