Taoiseach
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Nitrourea salts as primaries
Nitrourea being acidic forms salts with various bases. The silver and mercury salts are said to be sensitive explosives:
http://www.ab.ust.hk/hseo/chem_info/Shock%20and%20Explosive%...
Synthesis of the zinc salt is given in US pat 4554294 altough no explosive properties being mentioned.
Finally thermal behaviour of the Na, K, Ag, Ba salts is covered in "Studies on Thermal Decomposition of Energetic Nitrourea Salts" (Propellants,
Explosives, Pyrotechnics Volume 14 Issue 1, Pages 28 - 30). The silver salt is said to be formed as colourless needles from evaporating a solution of
AgNO3 und nitrourea. Explodes at 150°C.
I found nothing about the Hg and Pb salts but they definetly look promising too.
Attachment: nitrourea salts.pdf (262kB) This file has been downloaded 1047 times
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Formatik
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The Hg salt is only briefly mentioned in Centralblatt 67 [1896], 302 it apparently forms a double salt of varying composition with Hg(NO3)2. The
following is from Beil. I [II] 727 (3. Aufl.): K.CH2O3N3 is easily soluble in water, insol in alcohol. Hg(CH2O3N3)2 is a precipitate, extremely very
barely sol in HNO3 and H2SO4, but easily in HCl. Ag.CH2O3N3 (at 80º), is a precipitate consisting of microscopic prisms. PATR U108 cites Urbanski as
mentioning that Ag and Hg salts are more shock sensitive than nitrourea, but have no initating properties.
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Taoiseach
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Video of H2N-CO-N-NO2.Ag (silvernitrocarbamide) deflagrating:
http://geocities.com/roguemovies7/index.html
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