Isomeric derivatives of triazoles as new toxic decomposition products of 1,1-dimethylhydrazine

Detection and Neutralization of Unsymmetrical Dimethylhydrazine on the Surface of Construction Materials

“…Hydrogen cyanide, hydrazine, methylhydrazine, UDMH, and dimethylnitrosamine belong to class 1 of highly hazardous compounds; dimethylamine and formaldehyde, to class 2; and tetramethyltetrazene and dimethylformamide, to class 3. Moreover, this mixture contains alkyltriazole derivatives, whose cytotoxicity proved higher than that of UDMH [20]. The contamination of space stations with hydrazine fuel and toxic products of UDMH transformation is an important practical problem, whose solution is critical to the life support of the station and the safety of the crew.…”

Gas Chromatography–Mass Spectrometry Quantification of 1,1-Dimethylhydrazine Transformation Products in Aqueous Solutions: Accelerated Water Sample Preparation

“…An exception is DMF, the concentration of which was 218 mg L −1 . It should be noted that Sample 3 contained large amounts of the initial UDMH and, apparently, the more complex transformation products [30], the formation of which is facilitated by mild oxidation conditions and a low degree of rocket fuel conversion. A completely different picture is observed for UDMH pyrolysis products formed under extremely harsh conditions of supercritical water treatment.…”

Photocatalytic degradation of unsymmetrical dimethylhydrazine on TiO2/SBA-15 under 185/254 nm vacuum-ultraviolet

“…Some crucial drawbacks such as catalyst deactivation, high energy consumption, secondary pollution as well as low efficiency still exist. 7 TiO 2 photocatalytic oxidation is one of the most acceptable advanced oxidation processes used for environmental remediation due to the strong oxidizing power and facile operating conditions. 8 Gao et al 9 studied the photocatalytic oxidation of UDMH wastewater over Au decorated CdS/TiO 2 nanorod arrays under visible light and the photocatalytic activity was improved by the synergistic effect of heterojunction and surface plasmon resonance.…”

“…Some crucial drawbacks such as catalyst deactivation, high energy consumption, secondary pollution as well as low efficiency still exist. 7 …”