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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Nitromethane with 1,4-Dichlorobenzene and Heptane
Components:
(1) Nitromethane; CH3NO2 ; [75-52-5]
NIST Chemistry WebBook
for detail
(2) 1,4-Dichlorobenzene; C6H4Cl2; [106-46-7]
NIST Chemistry WebBook
for detail
(3) Heptane; C7H16; [142-82-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Patel, A. N.; J. Chem. Eng. Data 26, 124-7 (1981).
Variables:
Temperature = 294 K
Prepared By:
V. P. Sazonov
Experimental Data:
(Notes on the Nomenclature)
Table 1. Mutual solubility of nitromethane, 1,4-dichlorobenzene and heptane
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
20.5
293.7
0.062
0.000
0.098
0.000
20.5
293.7
0.076
0.035
0.120
0.023
20.5
293.7
0.076
0.114
0.123
0.077
20.5
293.7
0.076
0.208
0.127
0.144
20.5
293.7
0.085
0.295
0.145
0.209
20.5
293.7
0.110
0.370
0.189
0.265
20.5
293.7
0.201
0.408
0.330
0.278
20.5
293.7
0.370
0.380
0.544
0.232
20.5
293.7
0.500
0.338
0.677
0.190
20.5
293.7
0.594
0.294
0.757
0.156
20.5
293.7
0.710
0.211
0.839
0.104
20.5
293.7
0.800
0.143
0.895
0.066
20.5
293.7
0.876
0.077
0.935
0.034
20.5
293.7
0.940
0.015
0.966
0.006
20.5
293.7
0.957
0.000
0.973
0.000
Table 2. Compositions of equilibrium liquid phases of the ternary system
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
Comment(s)
20.5
293.7
0.933
0.017
0.961
0.007
nitromethane-rich phase
20.5
293.7
0.874
0.070
0.933
0.031
nitromethane-rich phase
20.5
293.7
0.842
0.100
0.916
0.045
nitromethane-rich phase
20.5
293.7
0.813
0.137
0.897
0.063
nitromethane-rich phase
20.5
293.7
0.780
0.155
0.882
0.073
nitromethane-rich phase
20.5
293.7
0.710
0.210
0.839
0.103
nitromethane-rich phase
20.5
293.7
0.079
0.032
0.125
0.021
heptane-rich phase
20.5
293.7
0.078
0.135
0.127
0.091
heptane-rich phase
20.5
293.7
0.076
0.195
0.126
0.135
heptane-rich phase
20.5
293.7
0.076
0.245
0.129
0.172
heptane-rich phase
20.5
293.7
0.085
0.295
0.145
0.209
heptane-rich phase
20.5
293.7
0.110
0.370
0.189
0.265
heptane-rich phase
Method/Apparatus/Procedure:
Two methods were used. The binodal solubility curve was determined by the method of appearance and disappearance of turbidity (Othmer
et al
.
1
). The analytical method was used to determine equilibrium liquid phase compositions. Various mixtures of known composition within the heterogenous region were prepared and brought to equilibrium. Conjugate phases were analyzed by refractive index measurement in conjunction with calibration curve prepared with mixtures of known composition on the solubility curve. Values of composition determined were checked by material-balance calculation.
Source and Purity of Materials:
(1) Source not specified; laboratory grade reagent; not purified.
(2) Source not specified; laboratory grade reagent; not purified.
(3) Source not specified; laboratory grade reagent; not purified.
Estimated Errors:
Temperature: control to ± 0.5 K
Titer: ± 0.05 mL
Titer: to 0.1 mg.
References:
1
D. F. Othmer, R. E. White, E. Trueger, Ind. Eng. Chem. 33, 1240 (1941).