title: Synthesis, characterization and thermolysis of 1,1-diamino-2,2-dinitroethylene (FOX-7) and its salts.
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.
authors.affiliation: High Energy Materials Research Laboratory, Pune 411 021, India. anniorganic@rediffmail.com
authors.forename: M
authors.initials: M
authors.lastname: Anniyappan
authors.forename: M B
authors.initials: MB
authors.lastname: Talawar
authors.forename: G M
authors.initials: GM
authors.lastname: Gore
authors.forename: S
authors.initials: S
authors.lastname: Venugopalan
authors.forename: B R
authors.initials: BR
authors.lastname: Gandhe
mesh_terms: D005030:Ethylenes / Q000138:chemical synthesis* / Q000737:chemistry*; D053834:Explosive Agents / Q000138:chemical synthesis / Q000737:chemistry; D006358:Hot Temperature; D012492:Salts / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D005030:Ethylenes; D053834:Explosive Agents; D012492:Salts