Synthesis And Analyses Of N,N –Dinitrourea
This comprehensive guide describes in detail proven methods and experiments for the analyses and synthesis of of N,N –Dinitrourea.
N,N’-Dinitrourea was obtained by nitration of urea in a 50:50 mixture of sulphuric acid and nitric acid at low temperature. N,N’-Dinitrourea has for the first time been synthesized in pure form and in acceptable yield. It was found to be stable in a desiccator for several weeks without decomposing. It has a high density (1.98 g/cm3) and a very high positive oxygene balance (+21.33 %) which should make it interesting as an energetic material.
It is, however, sensitive to friction and impact, has a low thermal stability and is chemically labile. All this taken into consideration we think that N,N’-dini-trourea should preferably be used as a starting material towards more stable energetic materials than as an energetic material in its own right.
N,N’-dinitrourea is a powerful and sensitive explosive and should be handled with appropriate precau¬tions. This guide includes the following topics:
- Summary
- Introduction
- Experimental
- Synthesis of’N,N’-Dinitrourea
- Analysis
- Differential Scanning Calorimetry, DSC
- Ignition Test in Wood’s Metal Bath
- Thermogravimetry, TG
- Mass Spectroscopic Data
- Density
- Sensitivity
- Summary and Conclusions
- Acknowledgements
- References
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