IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Nitroethane with Methanol, 1,2-Ethanediol and Cyclohexane

Components:
   (1) 1,2-Ethanediol; C2H6O2 ; [107-21-1]  NIST Chemistry WebBook for detail
   (2) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail
   (3) Methanol; CH4O; [67-56-1]  NIST Chemistry WebBook for detail
   (4) Nitroethane; C2H5NO2; [79-24-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Chrapec, J.; Rzoska, S.; Ziolo, J., Phase Transitions 4, 73-80 (1983).

Variables:
   Temperature = 296 K to 307 K

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

Experimental Remarks:

   The solubility temperatures of liquid phases were determined in quaternary mixtures with a constant mass relationship of (1), (2) and (3), and also in quaternary mixtures with a constant mass relationship of (1), (2) and (4).

Estimated tricritical point of quaternary system is 37.5 ± 1 °C at x₁ = 0.45, x₂ = 0.06, x₃ = 0.09 and x₄ = 0.45 (100 w₁ = 45.1, 100 w₂ = 2.6, 100 w₃ = 7.5 and 100 w₄ = 44.9, compilers).

Experimental Data: (Notes on the Nomenclature)

Solubility temperatures of the three liquid phases
t/°C	T/K	10² * Mass Fraction w₁	10² * Mass Fraction w₂	10² * Mass Fraction w₃	Mole Fraction x₁ (compiler)	Mole Fraction x₂ (compiler)	Mole Fraction x₃ (compiler)	Comment(s)
23.3	296.5	5.3	48.8	21.9	0.114	0.447	0.243	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
24.3	297.5	5.0	46.2	20.8	0.108	0.428	0.233	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
24.9	298.1	3.2	29.5	13.3	0.074	0.291	0.159	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
25.4	298.6	4.7	42.8	19.2	0.103	0.401	0.218	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
25.5	298.7	3.7	33.6	15.1	0.084	0.326	0.177	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
25.7	298.9	4.0	36.9	16.6	0.090	0.354	0.193	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
25.8	299.0	4.4	40.0	18.0	0.098	0.379	0.206	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 7.0 : 64.2 : 28.8
24.3	297.5	3.1	20.1	9.0	0.074	0.204	0.110	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
24.9	298.1	7.2	47.4	21.4	0.151	0.425	0.232	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
25.8	299.0	3.5	22.8	10.2	0.082	0.228	0.123	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
26.8	300.0	6.9	45.0	20.3	0.146	0.407	0.222	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
27.0	300.2	3.8	25.0	11.2	0.088	0.248	0.134	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
28.1	301.3	6.4	41.8	18.8	0.138	0.384	0.209	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
28.2	301.4	4.5	29.3	13.2	0.102	0.284	0.155	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
28.6	301.8	4.9	32.5	14.6	0.110	0.311	0.169	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
28.7	301.9	5.9	38.7	17.4	0.129	0.360	0.196	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
28.7	301.9	5.4	35.6	16.0	0.119	0.336	0.183	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 9.5 : 62.4 : 28.1
24.5	297.7	4.0	22.4	10.1	0.093	0.223	0.121	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
26.1	299.3	8.5	47.6	21.4	0.176	0.419	0.228	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
26.8	300.0	4.7	26.4	11.9	0.107	0.257	0.140	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
27.7	300.9	8.3	46.0	20.7	0.172	0.409	0.222	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
28.1	301.3	5.3	29.3	13.2	0.119	0.281	0.153	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
28.8	302.0	7.8	43.8	19.7	0.164	0.393	0.214	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
29.1	302.3	5.8	32.6	14.6	0.129	0.308	0.167	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
29.3	302.6	6.3	35.0	15.7	0.138	0.327	0.177	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
29.4	302.6	7.3	40.8	18.4	0.155	0.371	0.202	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
29.6	302.8	6.8	38.2	17.2	0.147	0.352	0.191	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 11.0 : 61.4 : 27.6
26.0	299.2	5.1	25.8	11.6	0.116	0.250	0.136	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
27.0	300.2	9.6	48.6	21.8	0.195	0.422	0.229	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
27.6	300.8	5.7	28.7	12.9	0.128	0.274	0.149	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
29.5	302.7	6.3	32.1	14.4	0.139	0.302	0.164	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
29.8	303.0	9.1	45.8	20.6	0.187	0.402	0.219	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
30.5	303.7	7.0	35.2	15.8	0.152	0.325	0.177	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
30.8	304.0	8.6	43.7	19.7	0.179	0.388	0.211	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
31.2	304.4	7.6	38.5	17.3	0.162	0.350	0.190	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
31.3	304.5	8.0	40.4	18.1	0.169	0.364	0.197	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 12.0 : 60.7 : 27.3
24.9	298.1	5.6	25.8	11.6	0.126	0.249	0.135	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
26.8	300.0	6.2	28.8	13.0	0.138	0.273	0.149	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
29.5	302.7	10.4	48.0	21.6	0.209	0.413	0.225	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
29.9	303.1	7.4	34.2	15.4	0.160	0.315	0.172	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
31.2	304.4	8.1	37.2	16.7	0.172	0.337	0.183	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
31.4	304.6	9.9	45.6	20.5	0.202	0.396	0.216	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
32.2	305.4	8.7	40.2	18.1	0.182	0.359	0.196	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
32.4	305.6	9.4	43.2	19.4	0.194	0.380	0.206	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.0 : 60.0 : 27.0
31.0	304.2	10.6	47.9	21.5	0.213	0.411	0.223	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
31.9	305.1	8.3	37.4	16.8	0.176	0.338	0.184	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
32.4	305.6	10.4	47.0	21.1	0.210	0.405	0.220	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
33.2	306.4	8.9	40.1	18.0	0.186	0.358	0.194	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
33.8	307.0	9.9	44.9	20.2	0.202	0.391	0.213	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
33.8	307.0	9.2	41.6	18.7	0.191	0.368	0.200	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9
34.0	307.2	9.4	42.5	19.1	0.194	0.375	0.204	constant mass relationship methanol : nitroethane : 1,2-ethanediol = 13.2 : 59.9 : 26.9

Method/Apparatus/Procedure:
   The synthetic method was used. The solutions were placed in closed glass ampoules. The temperature at which the second meniscus appeared was estimated visually. No experimental details given.

Source and Purity of Materials:
   (1) Not specified.
   (2) Not specified.
   (3) Not specified. (4) not specified.

Estimated Errors:

   Temperature: ±0.1 K.