Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4980177 | Journal of Loss Prevention in the Process Industries | 2017 | 47 Pages |
Abstract
The onset temperatures (TDSC) of 1H-1,2,4-triazole (1Htri), 3-methyl-1Htri (1Htri-CH3), and 3-amino-1Htri (1Htri-NH2) have been determined by sealed cell differential scanning calorimetry (SC-DSC), and molecular orbital calculations (MO) were performed to clarify the thermal decomposition mechanism and stability criteria of the decomposition pathways. The TDSC values of 1Htri, 1Htri-CH3, and 1Htri-NH2 were determined by the change in the energy of the thermal decomposition pathway model of intramolecular proton transfer combined with bond cleavage. The determined TDSC values are 297 °C for 1Htri, 114 °C for 1Hti-CH3, and 289 °C for 1Htri-NH2. These results agree well with the measured TDSC values of 338 °C for 1Htri, 172 °C for 1Hti-CH3, and 293 °C for 1Htri-NH2. The results reveal that our approach using the thermal decomposition pathways of intramolecular proton transfer combined with bond cleavage of 1Htri, 1Htri-CH3, and 1Htri-NH2 could expand and control application of these compounds.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Health and Safety
Authors
Wasana Kowhakul, Daisuke Inoue, Yuki Nakagawa, Hiroshi Masamoto, Mikiji Shigematsu,