Abstract: In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or an N-substituted diamino derivative thereof or a salt of 1,1-diamino-2,2-dinitroethylene or of the N-substituted diamino derivative, a carbodiimide is reacted with a dinitromethane anion. The reaction of the carbodiimide with the dinitromethane anion takes place in a solution.

Abstract: In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or a salt thereof, an isourea derivative cation, which consists of a C(NH2)(NH2+) radical and a nucleofugal leaving group bonded to the carbon atom of the C(NH2) (NH2+) radical, is reacted with a dinitromethane anion. The reaction of the isourea derivative cation with the dinitromethane anion takes place in a solution.

Abstract: An odor sample for explosives detection dogs includes a solution of the explosive in an ionic liquid, wherein the explosive is a nonperoxidic explosive. A process for producing an odor sample for explosives detection dogs as well as a process for using an odor sample for explosives detection dogs are also provided.

Abstract: A genuine-material test piece for the training of explosives sniffer dogs includes an explosive assimilated by a solid or liquid carrier material, a housing having an interior space, and a closure for a reversible gastight closure of the interior space or a space including the interior space. The carrier material with the explosive is contained in the interior space. A gas-permeable device prevents the carrier material from escaping from the interior space if the interior space or the space including the interior space is not gas-tightly closed by the closure.

Abstract: In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or an N-substituted diamino derivative thereof or a salt of 1,1-diamino-2,2-dinitroethylene or of the N-substituted diamino derivative, a carbodiimide is reacted with a dinitromethane anion. The reaction of the carbodiimide with the dinitromethane anion takes place in a solution.

Abstract: In a method for synthesizing 1,1-diamino-2,2-dinitroethylene (FOX-7) or a salt thereof, an isourea derivative cation, which consists of a C(NH2)(NH2+) radical and a nucleofugal leaving group bonded to the carbon atom of the C(NH2) (NH2+) radical, is reacted with a dinitromethane anion. The reaction of the isourea derivative cation with the dinitromethane anion takes place in a solution.