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Explosive terrorism characteristics of explosives and explosions
Published in Robert A. Burke, Counter-Terrorism for Emergency Responders, 2017
Diazodinitrophenol, (DDNP), C6H2N4O5, IUPAC name is 6-diazo-2,4-dinitrocyclohexa-2,4-dien-1-one, is a yellowish brown powder. DDNP explodes when shocked or heated to 356°F (180°C); it is dangerous and used as an initiating explosive. A solution of cold sodium hydroxide may be used to destroy it. DDNP may be desensitized by immersing it in water, as it does not react in water at normal temperature. It is less sensitive to impact but more powerful than mercury fulminate and almost as powerful as lead azide. The sensitivity of DDNP to friction is much less than that of mercury fulminate, but it is approximately that of lead azide (Figure 6.12).
Practical exercises in patent search
Published in Nelson Durán, Leandro Carneiro Fonseca, Amedea B. Seabra, Intellectual Property in Chemistry, 2018
Nelson Durán, Leandro Carneiro Fonseca, Amedea B. Seabra
Clicking OK and Search, the substance options related to this pharmaceutical active compound will appear. Select all options, click Get references, select All substances, and click Get. The found results are refined by document type (patent) and publication year (1923). The name of the compound is diazodinitrophenol, due to its important explosive properties. The patent number is US1460708.
The Curious Story of the Chemical Society’s Missing Obituary of John Lloyd Bullock
Published in Ambix, 2020
Heinrich Will, Liebig’s assistant and successor at the University of Giessen, had one son, Wilhelm Will (1854–1919) who was trained by his father at Giessen before being sent to the University of Berlin to study with his father’s close friend, Wilhelm Hofmann.38 Following research in organic chemistry as one of Hofmann’s assistants, habilitation and employment as a Privatdozent at Berlin, Will was promoted to an extraordinary professorship. In 1892, however, Will abandoned his academic career to work on the development of armaments at a newly established explosives test centre opened by the Ministry of War (Zentralversuchsstelle für Sprengstoffe des preußischen Kriegsministeriums). By 1897 he had become Director of this Test Centre, the Prussian equivalent of Britain’s Woolwich Arsenal. After a year in this position, he was transferred to take responsibility for the management of the Central Office for Scientific Research into the development of explosives and armaments at Berlin-Neubabelsberg. There, together with Friedrich Lenze (1866- >1936?), Will investigated how diazodinitrophenol (DDNP), first investigated by Hofmann’s pupil Peter Griess in 1858, could be made into a primary explosive. Will and Lenze also investigated how lead and silver azides might be safely used as primary explosives.39 In 1912 Will was elected President of the Deutsche Chemische Gesellschaft, a post he held until the summer of 1914.40 In the same catastrophic year, he was awarded an honorary doctorate by the Technische Hochschule at Charlottenburg (the forerunner of the Technische Universität Berlin).