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Dissolution properties of 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowutrzitane in N-methyl pyrrolidone

Authors :
Na Li
Rong-Zu Hu
Hong-Xu Gao
Li-Bai Xiao
Feng-Qi Zhao
Wang Ying
Xueli Chen
Yang Luo
Source :
Journal of Thermal Analysis and Calorimetry. 123:659-663
Publication Year :
2015
Publisher :
Springer Science and Business Media LLC, 2015.

Abstract

The dissolution properties of 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowutrzitane (TEX) in N-methyl pyrrolidone (NMP) were studied with a RD496-2000 Calvet microcalorimeter at four different temperatures. The heat effects were measured for TEX in NMP. The molar enthalpies and the differential molar enthalpies for TEX in NMP were also obtained at the same time. The corresponding kinetic equations that describe the four dissolution processes are dα/dt = 10−2.64(1−α)1.31 (T = 298.15 K), dα/dt = 10−2.58(1−α)1.31 (T = 303.15 K), dα/dt = 10−2.54(1−α)1.51 (T = 308.15 K), dα/dt = 10−2.49(1−α)1.03 (T = 313.15 K), and respectively. The values of activation energy E a and pre-exponential factor A for TEX in the dissolution process are 16.84 kJ mol−1 and 100.32 s−1.

Details

ISSN :
15882926 and 13886150
Volume :
123
Database :
OpenAIRE
Journal :
Journal of Thermal Analysis and Calorimetry
Accession number :
edsair.doi...........623197cad89c91f28978a01938eebd7b