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Chemistry and Chemists № 1 2026 Journal of Chemists-Enthusiasts |
Decomposition of HMTD (after 17 Months of Storage) Chemist |
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After experiments with explosive rivets, a small amount of HMTD (hexamethylene triperoxide diamine) remained. By the time the experiments were completed, the substance had already been stored for a year. The safest course of action was to dispose of the HMTD immediately, as organic peroxides are hazardous during storage. No further experiments with this substance were planned.
However, I was curious whether the compound would undergo decomposition during prolonged storage. Therefore, I postponed disposal of the peroxide until spring, assuming that an unexpected ignition was unlikely in a cold and damp laboratory. Seventeen months had passed since the synthesis of the compound. The HMTD sample had a strong odor of hexamine, whereas in the case of freshly synthesized compound this odor was practically undetectable. I weighed out 0.05 g of HMTD, placed it on a piece of paper, and touched it with a smoldering splint. A yellow flash occurred, accompanied by a characteristic sound, and white smoke formed. The odor of hexamine was noticeable. After the flash, the paper remained unchanged. During the flash, relatively large solid particles were ejected in all directions, leaving visible trails of smoke. This effect was not observed during the flash or explosion of a fresh sample of HMTD. I then spread the remaining substance (2.2 g) onto a sheet of paper and ignited it with a splint. A large yellow flash occurred, accompanied by a loud sound, and a significant amount of white smoke was produced. Tiny brown spots appeared on the paper. As in the previous experiment, numerous relatively large particles were observed, leaving trails of white smoke. A strong odor of hexamine was again noticeable. Thus, after 17 months of storage in a plastic cup, the HMTD sample exhibited clear signs of partial decomposition. |
Decomposition of HMTD (after 17 Months of Storage) |
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