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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Naphthalene with 1,3-Dinitrobenzene
Components:
(1) 1,3-Dinitrobenzene; C6H4N2O4; [99-65-0]
NIST Chemistry WebBook
for detail
(2) Naphthalene; C10H8; [91-20-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Sekiguchi, K.; Suzuki, E.; Tsuda, Y.; Shirotani, K.I.; Okamoto, K., Chem. Pharm. Bull. 1984, 32, 658-664.
Variables:
Temperature = Temperature
Prepared By:
W.E. Acree, Jr.
Experimental Data:
(Notes on the Nomenclature)
T/K
Mole Fraction x
1
Mole Fraction x
2
Comment(s)
363.8
0.000
1.000
Solid Phase (2)
356.4
0.123
0.877
Solid Phase (2)
348.3
0.243
0.757
Solid Phase (2)
341.8
0.310
0.690
Solid Phase (2)
337.7
0.354
0.646
Solid Phase (2)
332.2
0.415
0.585
Solid Phase (2)
326.1
0.469
0.531
Solid Phase (2)
324.6
0.482
0.518
1:1 Compound
325.0
0.503
0.497
1:1 Compound
324.6
0.543
0.457
1:1 Compound
324.3
0.565
0.435
1:1 Compound
323.6
0.589
0.411
1:1 Compound
325.0
0.619
0.381
Solid Phase (1)
328.9
0.649
0.351
Solid Phase (1)
330.7
0.662
0.328
Solid Phase (1)
332.7
0.699
0.301
Solid Phase (1)
338.7
0.755
0.245
Solid Phase (1)
345.2
0.839
0.161
Solid Phase (1)
349.6
0.923
0.077
Solid Phase (1)
353.7
1.000
0.000
Solid Phase (1)
Notes:
Compiler: Phase diagram shows formation of a 1:1 naphthalene - 1,3-dintrobenzene molecular compound. Two eutectic points occur at about x
1
= 0.476 and T/K = 324.2 and at x
1
= 0.600 and T/K = 323.2.
Method/Apparatus/Procedure:
Analytical balance, differential thermal analyzer and differential scanning calorimeter.
Binary mixtures prepared by weight. Phase diagram determined by combined differential thermal analysis and differential scanning calorimetric methods, supplemented by visual observation.
Source and Purity of Materials:
(1) Purity and chemical source were not specified in paper, was recrystallized from aqueous ethanol before use.
(2) Purity and chemical source were not specified in paper, was recrystallized from both ethanol and methanol before use.
Estimated Errors:
Temperature: T/K: precision ± 0.5 (compiler). x
1
: ± 0.002 (compiler).