IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitromethane with Alkynes

Components:
   (1) Alkynes; C7H12, C8H14, C9H16 and C16H30; []  NIST Chemistry WebBook for detail
   (2) Nitromethane; CH3NO2; [75-52-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Mulliken, S.P.; Wakeman, R.L., Rec.Trav. Chim, 54, 366-72 (1935).

Variables:
   Temperature = 270 K to 365 K

Prepared By:
   V. P. Sazonov

Experimental Data:   (Notes on the Nomenclature)

Miscibility temperatures of mixtures with equal volumes of nitromethane and alkyne
t/°C	T/K	Final Temperature (T_Fin)	Chemical Name
–4	270	138.0-138.4	2-Octyne; C8H14; [2809-67-8]
24	297	105.3-106.7	3-Heptyne; C7H12; [2586-89-2]
45	318	155.1-156.1	4-Nonyne; C9H16; [20184-91-2]
92	365	280	1-Hexadecyne; C16H30; [629-74-3]

Method/Apparatus/Procedure:
   The synthetic method was used. Miscibility was determined in a glass-stoppered tube of 4 mm inside diameter. Equal volumes (0.1 mL) of (1) and (2) were measured into the tube which was then strapped to a thermometer, warmed to 5 or 10 °C above the solubility temperature, mixed well by shaking, and then allowed to cool slowly, still shaking, in a bath of white oil (above 30 °C), water (below 30 °C), or nonfreezing mixture ( below 0 °C).

Source and Purity of Materials:
   (1) Not specified.
   (2) 1-hexadecyne synthesized in the Research Laboratory of Organic Chemistry, Massachusetts Institute of Technology; others alkynes were purest commercial samples available from the British Drug Houses.

Estimated Errors:
   Solubility: Not reported.
   Temperature: Not reported.
   Pressure: Not reported.