Decomposition of hexanitrostilbene (HNS) in dimethylformamide, an NMR analysis. Period covered: April--June 1976
1976
Abstract
Isothermal aging of DMF solutions of crude HNS and concomitant monitoring of the reaction mixtures through NMR techniques, show the system to behave in a similar manner from 95 through 116/sup 0/C, with no apparent reaction anomalies occurring within this range. At the intermediate temperature studied (104.5/sup 0/C), the decomposition of HNS occurring within the normal process time is at such a low level as to not indicate any potential processing problems. However, the decompositional behavior of the major impurity, dipicrylethane, occurs in a relatively rapid fashion, some 500 times faster at 105/sup 0/C than HNS for 50 percent decomposition.
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