Synthesis, characterization and thermolysis of 1,1-diamino-2,2-dinitroethylene (FOX-7) and its salts |
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Authors: | Anniyappan M Talawar M B Gore G M Venugopalan S Gandhe B R |
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Affiliation: | High Energy Materials Research Laboratory, Pune 411 021, India. anniorganic@rediffmail.com |
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Abstract: | The present paper discusses the efforts made in HEMRL to establish the synthesis of FOX-7 at 100 g/batch level. In the present study, 1,1-diamino-2,2-dinitroethylene has been synthesised by treatment of acetamidinium chloride with diethylmalonate to obtain 2-methyl-pyrimidine-4,6-dione which on nitration followed by hydrolysis gave FOX-7. The synthesised FOX-7 has been characterized by spectroscopic and thermal techniques. The data obtained confirms the structure of FOX-7. The sensitivity of FOX-7 towards mechanical stimuli indicated its insensitive nature. The theoretically computed explosive and ballistic parameters are close to that of RDX. The synthesised FOX-7 has been used as a precursor for the synthesis of potassium and guanidinium salts and the thermal analysis of these salts indicate their exothermic nature. |
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Keywords: | FOX-7 Potassium salt of FOX-7 Guanidinium salt of FOX-7 Insensitive high explosive Synthesis Characterization |
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