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Thermochemical properties of 2-oxo-1,3,5-trinitro-1,3,5-triazacyclohexane in dimethyl sulfoxide.
- Source :
- Journal of Thermal Analysis & Calorimetry; Mar2018, Vol. 131 Issue 3, p3047-3052, 6p
- Publication Year :
- 2018
-
Abstract
- The dissolution properties of 2-oxo-1,3,5-trinitro-1,3,5-triazacyclohexane (Keto-RDX) in dimethyl sulfoxide (DMSO) were studied by using a RD496-2000 Calvet microcalorimeter at four different temperatures under atmospheric pressure. The heat effects, molar enthalpies (<italic>Δ</italic><subscript>diss</subscript><italic>H</italic>), and differential enthalpies (<italic>Δ</italic><subscript>dif</subscript><italic>H</italic>) of dissolution were determined. Furthermore, the corresponding kinetic equations describing the dissolution processes at the four experimental temperatures are d<italic>α</italic>/d<italic>t</italic> = 10<superscript>−2.43</superscript> (1 − <italic>α</italic>)<superscript>0.63</superscript> (<italic>T</italic> = 298.15 K), d<italic>α</italic>/d<italic>t</italic> = 10<superscript>−2.41</superscript> (1 − <italic>α</italic>)<superscript>0.67</superscript> (<italic>T</italic> = 303.15 K), d<italic>α</italic>/d<italic>t</italic> = 10<superscript>−2.40</superscript> (1 − <italic>α</italic>)<superscript>0.75</superscript> (<italic>T</italic> = 308.15 K), and d<italic>α</italic>/d<italic>t</italic> = 10<superscript>−2.38</superscript> (1 − <italic>α</italic>)<superscript>0.76</superscript> (<italic>T</italic> = 313.15 K). The determined values of the activation energy <italic>E</italic> and pre-exponential factor <italic>A</italic> for the dissolution process are 5.99 kJ mol<superscript>−1</superscript> and 10<superscript>−1.38</superscript> s<superscript>−1</superscript>, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13886150
- Volume :
- 131
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Journal of Thermal Analysis & Calorimetry
- Publication Type :
- Academic Journal
- Accession number :
- 128150067
- Full Text :
- https://doi.org/10.1007/s10973-017-6757-7