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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Pyrene with 2,4-Dinitrophenol
Components:
(1) 2,4-Dinitrophenol; C6H4N2O5; [51-28-5]
NIST Chemistry WebBook
for detail
(2) Pyrene; C16H10; [129-00-0]
NIST Chemistry WebBook
for detail
Original Measurements:
Shinomiya, C., J. Chem. Soc. Japan 1940, 15, 259-270.
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)
386.7
0.000
1.000
Solid Phase (2)
382.2
0.076
0.924
Solid Phase (2)
386.2
0.195
0.805
1:1 Compound
416.2
0.390
0.610
1:1 Compound
419.2
0.470
0.530
1:1 Compound
419.7
0.494
0.506
1:1 Compound
419.2
0.544
0.456
1:1 Compound
418.2
0.552
0.448
1:1 Compound
407.7
0.665
0.335
1:1 Compound
405.7
0.820
0.180
Solid Phase (1)
416.2
0.923
0.077
Solid Phase (1)
423.2
1.000
0.000
Solid Phase (1)
Notes:
Author reports formation of a 1:1 pyrene - 2,4-dinitrophenol reddish-orange molecular compound having a melting point temperature of 419.5 K. Two eutectic points occur at x
1
= 0.156 and T/K = 374.2, and at x
1
= 0.736 and T/K = 393.2.
Method/Apparatus/Procedure:
No experimental details given in paper.
Source and Purity of Materials:
(1) Purity and chemical source were not specified in paper.
(2) Purity and chemical source were not specified in paper.
Estimated Errors:
Temperature: T/K: precision ± 0.2 (compiler). x
1
: ± 0.002 (compiler).