Rejected unsymmetrical dimethylhydrazine(UDMH) reuse technology abroad have been summarized. Many comercial products were synthesized successfully using UDMH, including daminozide, 1,3,,5-triamino-2,4,6-trinitrobenzene (TATB), heterocyclic compounds, organosilicon derivatives, trifluoromethanesulfonic hydrazide, etc. Synthesis process, conditions, principles advantages and disadvantages have been analysed. It was pointed out that the main directions of further study are developing technology which is environmentally safe, efficient, low cost, and practical.
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