IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitroethane with Toluene and Paraffins

Components:
   (1) Nitroethane; C2H5NO2; [79-24-3]  NIST Chemistry WebBook for detail
   (2) Toluene; C7H8; [108-88-3]  NIST Chemistry WebBook for detail
   (3) Paraffin; ; []  NIST Chemistry WebBook for detail

Original Measurements:
   Kozlov, L.M.; Volpert, V.I., Tr., Kazan, Khim.-Tekhnol. Inst. 40, 240-5 (1969).

Variables:
   Temperature = 252 K to 332 K

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

Experimental Remarks:

   The temperatures of phase transitions were determined in ternary mixtures with a constant mass relationship of (1) and (2) as 5.0:95.0, 10.0:90.0, 30.0:70.0, 50.0:50.0, 70.0:30.0, 80.0:20.0, 90.0:10.0 and 95.0:5.0 respectively (see Tables 1 and 2).

Experimental Data:   (Notes on the Nomenclature)

Table 1. Solubility temperatures of the solid phase
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	Comment(s)
-21.5	251.7	4.95	94.07	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-18.0	255.2	4.70	90.24	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-16.0	257.2	4.22	85.84	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-12.0	261.2	3.85	71.15	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-9.5	263.7	2.97	51.86	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-2.8	270.4	2.54	31.72	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-1.0	272.2	1.56	27.99	constant mass relationship nitroethane : toluene = 5.0 : 95.0
1.5	274.7	1.11	18.83	constant mass relationship nitroethane : toluene = 5.0 : 95.0
5.0	278.2	0.43	9.67	constant mass relationship nitroethane : toluene = 5.0 : 95.0
8.0	281.2	0.07	1.82	constant mass relationship nitroethane : toluene = 5.0 : 95.0
-20.8	252.4	9.93	89.28	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-18.0	255.2	9.41	88.17	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-12.0	261.2	7.94	72.00	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-10.0	263.2	6.97	63.06	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-6.5	266.7	4.50	40.30	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-2.0	271.2	3.53	31.34	constant mass relationship nitroethane : toluene = 10.0 : 90.0
2.0	275.2	2.26	17.68	constant mass relationship nitroethane : toluene = 10.0 : 90.0
5.0	278.2	1.50	8.37	constant mass relationship nitroethane : toluene = 10.0 : 90.0
7.2	280.4	0.92	4.13	constant mass relationship nitroethane : toluene = 10.0 : 90.0
8.0	281.2	0.10	1.39	constant mass relationship nitroethane : toluene = 10.0 : 90.0
-20.2	253.0	30.23	69.17	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-17.0	256.2	29.00	67.95	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-14.3	258.9	27.00	63.98	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-10.0	263.2	25.16	57.84	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-6.5	266.7	19.92	53.23	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-4.0	269.2	17.98	44.94	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-0.5	272.7	14.06	31.88	constant mass relationship nitroethane : toluene = 30.0 : 70.0
2.0	275.2	10.04	21.36	constant mass relationship nitroethane : toluene = 30.0 : 70.0
3.3	276.5	5.02	11.86	constant mass relationship nitroethane : toluene = 30.0 : 70.0
8.0	281.2	0.54	1.56	constant mass relationship nitroethane : toluene = 30.0 : 70.0
-15.5	257.7	47.50	51.85	constant mass relationship nitroethane : toluene = 50.0 : 50.0
-9.0	264.2	47.82	47.66	constant mass relationship nitroethane : toluene = 50.0 : 50.0
-3.5	269.7	41.05	43.45	constant mass relationship nitroethane : toluene = 50.0 : 50.0
-0.7	272.5	34.90	37.16	constant mass relationship nitroethane : toluene = 50.0 : 50.0
1.0	274.2	26.99	26.90	constant mass relationship nitroethane : toluene = 50.0 : 50.0
1.0	274.2	25.10	27.60	constant mass relationship nitroethane : toluene = 50.0 : 50.0
1.8	275.0	20.10	19.92	constant mass relationship nitroethane : toluene = 50.0 : 50.0
4.8	278.0	9.00	8.85	constant mass relationship nitroethane : toluene = 50.0 : 50.0
7.0	280.2	2.56	2.40	constant mass relationship nitroethane : toluene = 50.0 : 50.0
8.0	281.2	0.92	1.09	constant mass relationship nitroethane : toluene = 50.0 : 50.0
-7.5	265.7	70.42	28.68	constant mass relationship nitroethane : toluene = 70.0 : 30.0
2.5	275.7	60.00	27.91	constant mass relationship nitroethane : toluene = 70.0 : 30.0
2.5	275.7	44.85	20.25	constant mass relationship nitroethane : toluene = 70.0 : 30.0
3.5	276.7	39.98	17.60	constant mass relationship nitroethane : toluene = 70.0 : 30.0
4.5	277.7	25.20	10.82	constant mass relationship nitroethane : toluene = 70.0 : 30.0
5.3	278.5	20.05	9.83	constant mass relationship nitroethane : toluene = 70.0 : 30.0
6.8	280.0	13.95	5.97	constant mass relationship nitroethane : toluene = 70.0 : 30.0
7.5	280.7	9.93	3.84	constant mass relationship nitroethane : toluene = 70.0 : 30.0
8.0	281.2	2.70	1.29	constant mass relationship nitroethane : toluene = 70.0 : 30.0
8.0	281.2	1.68	0.72	constant mass relationship nitroethane : toluene = 70.0 : 30.0
-0.5	272.7	79.50	19.61	constant mass relationship nitroethane : toluene = 80.0 : 20.0
4.5	277.7	75.13	19.74	constant mass relationship nitroethane : toluene = 80.0 : 20.0
4.5	277.7	70.10	16.94	constant mass relationship nitroethane : toluene = 80.0 : 20.0
4.8	278.0	65.58	15.37	constant mass relationship nitroethane : toluene = 80.0 : 20.0
5.0	278.2	50.00	12.92	constant mass relationship nitroethane : toluene = 80.0 : 20.0
6.0	279.2	19.95	5.05	constant mass relationship nitroethane : toluene = 80.0 : 20.0
7.5	280.7	15.09	4.91	constant mass relationship nitroethane : toluene = 80.0 : 20.0
8.0	281.2	9.85	3.08	constant mass relationship nitroethane : toluene = 80.0 : 20.0
8.3	281.5	6.09	1.92	constant mass relationship nitroethane : toluene = 80.0 : 20.0
8.3	281.5	2.46	0.54	constant mass relationship nitroethane : toluene = 80.0 : 20.0
3.0	276.2	90.07	8.27	constant mass relationship nitroethane : toluene = 90.0 : 10.0
5.0	278.2	84.92	9.95	constant mass relationship nitroethane : toluene = 90.0 : 10.0
6.0	279.2	76.10	15.25	constant mass relationship nitroethane : toluene = 90.0 : 10.0
6.0	279.2	74.80	10.10	constant mass relationship nitroethane : toluene = 90.0 : 10.0
7.3	280.5	18.46	1.51	constant mass relationship nitroethane : toluene = 90.0 : 10.0
8.2	281.4	14.92	1.38	constant mass relationship nitroethane : toluene = 90.0 : 10.0
8.2	281.4	11.04	1.27	constant mass relationship nitroethane : toluene = 90.0 : 10.0
8.2	281.4	9.05	0.90	constant mass relationship nitroethane : toluene = 90.0 : 10.0
8.2	281.4	6.00	1.05	constant mass relationship nitroethane : toluene = 90.0 : 10.0
8.5	281.7	1.80	0.26	constant mass relationship nitroethane : toluene = 90.0 : 10.0
4.0	277.7	94.98	4.35	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.0	281.2	90.46	4.48	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.0	281.2	84.93	6.12	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.0	281.2	79.98	5.07	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.2	281.4	14.99	1.05	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.2	281.4	9.95	1.07	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.2	281.4	6.50	0.44	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.5	281.7	2.53	0.47	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.5	281.7	1.28	0.46	constant mass relationship nitroethane : toluene = 95.0 : 5.0
8.8	282.0	0.24	0.20	constant mass relationship nitroethane : toluene = 95.0 : 5.0

Table 2. Solubility temperatures of the liquid phases
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	Comment(s)
13	286.2	25.10	27.60	constant mass relationship nitroethane : toluene = 50.0 : 50.0
16	289.2	26.99	26.90	constant mass relationship nitroethane : toluene = 50.0 : 50.0
22	295.2	9.00	8.85	constant mass relationship nitroethane : toluene = 50.0 : 50.0
24	297.2	20.10	19.92	constant mass relationship nitroethane : toluene = 50.0 : 50.0
31	304.2	9.93	3.84	constant mass relationship nitroethane : toluene = 50.0 : 50.0
36	309.2	44.85	20.25	constant mass relationship nitroethane : toluene = 50.0 : 50.0
40	313.2	39.98	17.60	constant mass relationship nitroethane : toluene = 50.0 : 50.0
42	315.2	13.95	5.97	constant mass relationship nitroethane : toluene = 50.0 : 50.0
46	319.2	20.05	9.83	constant mass relationship nitroethane : toluene = 50.0 : 50.0
48	321.2	25.20	10.82	constant mass relationship nitroethane : toluene = 50.0 : 50.0
11	284.2	6.09	1.92	constant mass relationship nitroethane : toluene = 80.0 : 20.0
32	305.2	9.85	3.08	constant mass relationship nitroethane : toluene = 80.0 : 20.0
36	309.2	70.10	16.94	constant mass relationship nitroethane : toluene = 80.0 : 20.0
46	319.2	65.58	15.37	constant mass relationship nitroethane : toluene = 80.0 : 20.0
48	321.2	15.09	4.91	constant mass relationship nitroethane : toluene = 80.0 : 20.0
48	321.2	19.95	5.05	constant mass relationship nitroethane : toluene = 80.0 : 20.0
54	327.2	50.00	12.92	constant mass relationship nitroethane : toluene = 80.0 : 20.0
25	298.2	84.92	9.95	constant mass relationship nitroethane : toluene = 90.0 : 10.0
30	303.2	76.10	15.25	constant mass relationship nitroethane : toluene = 90.0 : 10.0
30	303.2	11.04	1.27	constant mass relationship nitroethane : toluene = 90.0 : 10.0
32	305.2	14.92	1.38	constant mass relationship nitroethane : toluene = 90.0 : 10.0
49	322.2	74.80	10.10	constant mass relationship nitroethane : toluene = 90.0 : 10.0
55	328.2	18.46	1.51	constant mass relationship nitroethane : toluene = 90.0 : 10.0
32	305.2	90.46	4.48	constant mass relationship nitroethane : toluene = 95.0 : 5.0
37	310.2	9.95	1.07	constant mass relationship nitroethane : toluene = 95.0 : 5.0
48.5	321.7	14.99	1.05	constant mass relationship nitroethane : toluene = 95.0 : 5.0
52	325.2	84.93	6.12	constant mass relationship nitroethane : toluene = 95.0 : 5.0
59	332.2	79.98	5.07	constant mass relationship nitroethane : toluene = 95.0 : 5.0

Method/Apparatus/Procedure:
   The synthetic method was used. No experimental details given.

Source and Purity of Materials:
   (1) Not specified.
   (2) Not specified.
   (3) Narrow fraction of liquid paraffin separated in the interval of (195 to 270)°C is treated by urea; m. p. = 9°C.

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