Science and Technology of Energetic Materials

Vol.75, No.6 (2014)

Research paper

Study on synthesis and properties of ammonium salts of 1,2,4-triazole-3-one and 1,2,4-triazolidine-3,5-dione
Mieko Kumasaki, Mikito Nakano, Kohei Sasahara, Shingo Date and Takaaki Mizutani


Ammonium salts of 1,2,4-triazole-3-one and 1,2,4-triazolidine-3,5-dione were synthesised and their properties were evaluated. The boiling point of 1,2,4-triazole-3-one allowed direct reaction with liquid ammonia.
Elemental analysis showed that nitrogen content of the ammonium salts increased, as expected, which is favourable for gas generating agents. FT-IR spectra indicated that the framework structures were conserved during the reaction. However, ammonia gas was released from 1,2,4-triazole-3-one salts at room temperature, while 1,2,4-triazolidine-3,5-dione maintained its composition.
The thermal decomposition behaviour of 1,2,4-triazolidine-3,5-dione salt showed that ammonium gases evolved at 85℃. Sensitivity tests were carried out and burning rates of the mixtures with ammonium nitrate and CuO were measured to understand the properties of azole-ammonium salts.

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1,2,4-triazole-3-one and 1,2,4-triazolidine-3,5-dione, ammonium salts, pyrolysis behaviour, sensitivity, combustion behaviour

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