Phase diagram of pyrene with 2,3-7,8-dibenzpyrene-1,6-quinone

• Published in: Journal of thermal analysis and calorimetry Vol. 139; no. 3; pp. 1925 - 1929
• Main Authors: Zherebtsov, D. A., Trofimov, E. A., Sakthi Dharan, C. P., Kalmagambet, Y., Vinnik, D. A., Nayfert, S. A., Polozov, M. A., Merzlov, S. V., Avdin, V. V., Vakhitov, M. G., Zaitseva, O. V., Klygach, D. S., Makrovets, I. V.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01-02-2020; Springer; Springer Nature B.V
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Eutectic composition; Inorganic Chemistry; Measurement Science and Instrumentation; Melting points; Phase diagrams; Physical Chemistry; Polymer Sciences; Quinone; Quinones; Temperature effects; Thermodynamic models; Thermodynamics; Pyrene; CALPHAD; Thermal analysis; Phase diagram; Thermodynamic calculation; Vat Yellow 4
• DOI: 10.1007/s10973-019-08588-9
• EISSN: 1588-2926
• ISSN: 1388-6150

The binary phase diagram of pyrene with 2,3-7,8-dibenzpyrene-1,6-quinone C
24
H
12
O
2
was studied experimentally in 20–400 °C temperature interval at 0–100% of pyrene. The melting point of C
24
H
12
O
2
was found to be 375 °C. The experimental data made it possible to estimate for the first time the thermal effect of melting of C
24
H
12
O
2
. The additive method was used to estimate the thermodynamic characteristics of C
24
H
12
O
2
. Obtained data allow to perform the thermodynamic modeling and calculation of the phase diagram of the C
24
H
12
O
2
–C
16
H
10
system. Components form simple eutectic with coordinates of eutectic point: 94.70 mol% (91.58 mass%) of pyrene and 146.3 °C.