IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: 2-Nitrobutane with Tricosane

Components:
   (1) 2-Nitropropane; C3H7NO2 ; [79-46-9]  NIST Chemistry WebBook for detail
   (2) Tricosane; C23H48; [638-67-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Rakhmanova, V.A.; Kozlov, L.M., Khim. Tekhnol. Topl. Masel (8), 9-13 (1970).

Variables:
   Temperature = 303 K to 325 K

Prepared By:
   V. P. Sazonov and N. V. Sazonov

Experimental Remarks:

   The mutual solubility of 2-nitropropane (1) and tricosane (2) in mass percent over the specified temperature range were presented in a graphical form in the original publication. The authors at the request of the compilers provided the numerical data in the table below.

Monotectic equilibrium occurs at 43.3 °C (316.5 K, compilers).

Experimental Data: (Notes on the Nomenclature)

Mutual solubility of 2-nitropropane (1) and tricosane (2)
t/°C	T/K	10² * Mass Fraction w₁	Mole Fraction x₁ (compiler)	Comment(s)
30.0 a	303.2	-	-	hydrocarbon-rich phase
35.0 a	308.2	-	-	hydrocarbon-rich phase
40.0 a	313.2	-	-	hydrocarbon-rich phase
43.3 a	316.5	33.8	0.650	hydrocarbon-rich phase
44.6 a	317.8	17.0	0.427	hydrocarbon-rich phase
46.9 a	320.1	2.5	0.085	hydrocarbon-rich phase
47.5 b	320.7	-	-	hydrocarbon-rich phase
47.9 b	321.1	45.3	0.751	hydrocarbon-rich phase
50.0 b	323.2	-	-	hydrocarbon-rich phase
50.8 b	324.0	54.5	0.814	hydrocarbon-rich phase
51.8 b	325.0	64.2	0.867	hydrocarbon-rich phase

Mutual solubilty of 2-nitropropane (1) and tricosane (2)
t/°C	T/K	10² * Mass Fraction w₁	Mole Fraction x₁ (compiler)	Comment(s)
30.0 a	303.2	97.8	0.994	2-nitropropane-rich phase
35.0 a	308.2	96.2	0.989	2-nitropropane-rich phase
40.0 a	313.2	92.2	0.977	2-nitropropane-rich phase
43.3 a	316.5	88.0	0.964	2-nitropropane-rich phase
44.6 a	317.8	-	-	2-nitropropane-rich phase
46.9 a	320.1	-	-	2-nitropropane-rich phase
47.5 b	320.7	81.2	0.940	2-nitropropane-rich phase
47.9 b	321.1	-	-	2-nitropropane-rich phase
50.0 b	323.2	75.0	0.916	2-nitropropane-rich phase
50.8 b	324.0	-	-	2-nitropropane-rich phase
51.8 b	325.0	64.2	0.867 (UCST)	2-nitropropane-rich phase

Notes:
   ^a  Solid-liquid equilibrium.
   ^b  Liquid-liquid equilibrium.

Method/Apparatus/Procedure:
   The synthetic method was used. No details were reported.

Source and Purity of Materials:
   (1) Source not specified; purity not specified; purified.
   (2) Source not specified; purity not specified; b. p. = 383.8°C, m. p. = 47.7°C.

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