IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitroethane with 1,2-Ethanediol and 1-Decanol

Components:
   (1) 1,2-Ethanediol; C2H6O2 ; [107-21-1]  NIST Chemistry WebBook for detail
   (2) 1-Decanol; C10H22O; [112-30-1]  NIST Chemistry WebBook for detail
   (3) Nitroethane; C2H5NO2; [79-24-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Francis, A.W., J. Phys. Chem. 60, 20-7 (1956).

Variables:
   Temperature = 273 K to 283 K

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

Experimental Data:   (Notes on the Nomenclature)

Table 1. Solubility of nitroethane (1), 1,2-ethanediol (2) and 1-decanol (3)
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)
0.0	273.2	84	4	0.89	0.05
0.0	273.2	28.5	34.5	0.325	0.475
0.0	273.2	11a	60	0.11	0.75
0.0	273.2	10	13	0.16	0.25
0.0	273.2	9	80	0.08	0.87
0.0	273.2	8.5	46.5	0.10	0.653
6.0	279.2	54b	24	0.58	0.31
6.0	279.2	50	24	0.55	0.32
6.0	279.2	45	32.5	0.47	0.414
6.0	279.2	34	16	0.44	0.25
6.0	279.2	19	71	0.17	0.78
6.0	279.2	10a	61	0.10	0.76
6.0	279.2	8	80	0.07	0.88
6.0	279.2	7.5	47.5	0.087	0.666
10.0	283.2	82	8	0.85	0.10
10.0	283.2	54a	26	0.57	0.33
10.0	283.2	53a	8	0.65	0.12
10.0	283.2	35	8	0.49	0.14
10.0	283.2	25	60	0.24	0.69
10.0	283.2	9a	62	0.09	0.77
10.0	283.2	8	80	0.07	0.88
10.0	283.2	7.5	47.5	0.087	0.666

Table 2. Composition of equilibrium of two and three liquid phases
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
0.0	273.2	95	4	0.95	0.05	nitroethane-rich phase
0.0	273.2	86	1	0.92	0.01	nitroethane-rich phase
0.0	273.2	2	28	0.03	0.49	nitroethane-rich phase
6.0	279.2	73	13	0.77	0.07	nitroethane-rich phase
10.0	283.2	69	15	0.73	0.19	nitroethane-rich phase

Table 3. Composition of equilibrium of two and three liquid phases
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
0.0	273.2	23	55	0.23	0.67	glycol-rich phase
0.0	273.2	19	4	0.32	0.08	glycol-rich phase
0.0	273.2	1.5	93.5	0.01	0.97	glycol-rich phase
6.0	279.2	32	48	0.32	0.58	glycol-rich phase
10.0	283.2	36	43	0.37	0.53	glycol-rich phase

Table 4. Composition of equilibrium of two and three liquid phases
t/°C	T/K	10² * Mass Fraction w₁	Mass Fraction w₂	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Comment(s)
0.0	273.2	-	-	-	-	alcohol-rich phase
0.0	273.2	solid	alcohol	solid	alcohol	alcohol-rich phase
0.0	273.2	solid	alcohol	solid	alcohol	alcohol-rich phase
6.0	279.2	-	-	-	-	alcohol-rich phase
10.0	283.2	-	-	-	-	alcohol-rich phase

Notes:
   Table 1  ^a  Plait point of binodal curve.
   Table 1  ^b  Col. A col is a point in a ternary system where two separate binodal curves meet at their respective plait points.

Method/Apparatus/Procedure:
   The synthetic method was used. Observations were made after vigorous shaking in glass-stoppered tubes (15 mL capacity) immersed in water baths in large Dewar flasks. Temperature was adjusted by adding small amounts of cooler or warmer water. Filling started with 5 mL of one reagent followed by small additions of the other two, usually alternately, to maintain a trace of lower or upper layer, until the composition of a plait point was reached or the tube was full (see Tables 1 and 2).

Source and Purity of Materials:
   (1) Eastman Kodak Co.; distilled with 30 cm column with reflux; b. p. = (114 to 115)°C; m. p. = -78°C; n(20°C,D) = 1.3920, p(20°C) = 1046.9 g·L^-1.
   (2) Purified by crystallization; m. p. = -13.3°C; n(20°C,D) = 1.4315, p(25°C) = 1110.1 g·L^-1.
   (3) Purified by crystallization; m. p. = 6.8°C; n(20°C, D) = 1.4372, p(20°C) = 831.8 g·L^-1.

Estimated Errors:
   Solubility: Not specified.
   Temperature: Not specified.