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virgilius1979
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Do you think DNU can be produced from urea nitrate? I'm thinking that the water from the first nitration could hydrolize DNU. The patents showed above
all required almost anhydrous conditions.
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Adas
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Quote: Originally posted by virgilius1979  | | Do you think DNU can be produced from urea nitrate? I'm thinking that the water from the first nitration could hydrolize DNU. The patents showed above
all required almost anhydrous conditions. |
The SO3 in oleum traps the water pretty well. 
Rest In Pieces!
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AndersHoveland
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I do not think so. It would require additional nitric acid, otherwise all you will get is nitrourea.
Interestingly, the nitrate salt of nitroguanidine exists. (surprisingly, dinitroguanidine can be made in the presence of oleum. I would have thought
there would be degredation of the nitroguanidine by more sulfuric acid, but apparently not.)
So in theory, you should just be able to add 99% sulfuric acid to nitroguanidine nitrate to get dinitroguanidine.
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Nitrate Salt of Nitroguanidine CN4H5O5
When nitroguanidine is dissolved in hot, concentrated nitric acid and allowed to crystallize, the nitrate salt is deposited in thick rhombic shaped
prisms m.p. 147 ºC , with decomposition. They lose nitric acid slowly in the air and yield α-Nitroguanidine when recrystallized from water.
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caterpillar
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Here is some info on nitrate of nitroguanidine. Sorry, boys, russian language... https://www.exploders.us/forum/1/16191.html
Women are more perilous sometimes, than any hi explosive.
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AndersHoveland
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| Quote: Originally posted by caterpillar | Here is some info on nitrate of nitroguanidine. Sorry, boys, russian language...
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свойства, немного мощнее
октогена, кислотная
реакция, корродирует,
довольно устойчив, сд 9900м\с,
получение: в
нитрогуанидин
добавляешь азотной
кислоты 65% концентрации,
не фильтруешь, ждешь
пока испарится кислота,
выход 130% от взятого НГу. 100г
такого вва срезает
дерево 15см диамтром
C(NHNO2)(NH2)NH*HNO3
10г нитрогуанидина
слегка смачивается
водой. Затем к нему с
перемешиванием
прикапывается 10,5мл 60% р-ра
азотной кислоты смесь
при этом разогревается.
Открытую чашку ставят в
сухое (желательно
прохладное ) место, где
при периодическом
разрыхлении смесь как
можно быстрее
высушивается.В
результате получается
15-16г NQN
кислородный баланс
+4,79%,объем детонационных
газов 838л/кг,легко
прессуется до плотности
1,8г/куб.см и выше,при
поджигании быстро
сгорает
ослепительно-ярким и
несколько зеленоватым
пламенем, хранить (во
избежание потерь
кислоты ) следует в
герметичной
склянке,аморфный
порошок, медленно
разлагающийся ( теряющий
кислоту ) на воздухе уже
при обычных условиях и
быстро - при нагревании
или при растворении в
воде.исключительно
кислотное соединение,
разрушающе действующее
на большинство металлов
( включая медь ), некоторые
пластмассы и многие
взрывчатые вещества
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Let me try to translate some of that:
C(NHNO2)(NH2)NH*HNO3
properties: a little more powerful than HMX, 9900 meters per second obtained, fairly stable
100g of the nitroguanidine nitrate (NGN) can cut a piece of wood 15cm in diameter
To nitroguanidine you add nitric acid concentration of 65%.
it is not filtered, wait until the acid evaporates, the yield is 130%, relative to the mass of the initial nitroguanidine.
10g nitroguanidine is lightly moistened with water. Next 10.5 ml of a 60% solution of nitric acid was added dropwise with stirring, the mixture is
heated at the same time. Open cup placed in a dry (preferably cool) place, result is 15-16g NGN.
oxygen balance of 4.79%, the volume of detonation gases 838 L/kg, easily compacted to a density of 1.8 g / cm3 and higher, when ignited
quickly burns blindingly bright and somewhat greenish flame, in order to avoid loss of acid it should be stored in a sealed flask, amorphous powder,
slowly decaying (losing acid) in the air, even at normal conditions, and much faster when heated, corrosive to most metals (including copper), some
plastics, and to many other explosives.
[Edited on 15-1-2013 by AndersHoveland]
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franklyn
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So how did we get from Dinitrourea to Dinitroguanidine and now it's inclusion acid of crystallization
" properties: a little more powerful than HMX, 9900 meters per second obtained, fairly stable "
more like fairy tale , for a compound of ~ 1.8 g/cc density with little carbon , if true
the high gas volume 838 L/kg may account for the result.
1,2-Dinitroguanidine and Salts (thread)
www.sciencemadness.org/talk/viewthread.php?tid=17908
From there
www.sciencemadness.org/talk/viewthread.php?tid=17908#pid2262...
http://sites.google.com/site/energeticchemical/nitroguanidin...
Synthesis and Some Properties of 1,2-Dinitroguanidine
www.sciencemadness.org/talk/files.php?pid=187259&aid=115...
From here _
www.sciencemadness.org/talk/viewthread.php?tid=14033#pid1891...
The Energetic Double Salt Nitroguanidinium Nitrate Guanidinium Nitrate
www.sciencemadness.org/talk/files.php?pid=217632&aid=154...
Rosco Bodine posted that paper here _
www.sciencemadness.org/talk/viewthread.php?tid=8144&page...
Original source from solo
www.sciencemadness.org/talk/viewthread.php?tid=15455&pag...
Progress in the Development of Energetic Materials :
Insensitive Replacements for RDX , Possible Candidates
www.imemg.org/res/IMEMTS 2010/presentations/synthesis_2_Klapoetke.pdf
1. Ammonium dinitroguanidine (ADNQ)
2. Amino-nitro-guanidine (ANG)
3. Diaminouronium nitrate (DAUNO3)
4. Diamino-oxadiazolium5-aminotetrazolate
5. Triaminoguanidiniumdinitriminoazatriazolate
Attachment: Inorganic Amino-Nitro-Guanidinium Derivatives.pdf (889kB)
This file has been downloaded 744 times
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caterpillar
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| Quote: Originally posted by franklyn |
" properties: a little more powerful than HMX, 9900 meters per second obtained, fairly stable "
more like fairy tale , for a compound of ~ 1.8 g/cc density with little carbon , if true
the high gas volume 838 L/kg may account for the result.
. |
Yeah, people in aforementioned russian forum take it just as you said: fairy tale. But compound with positive oxygen balance which does not require
for its preparation concentrated acid may be interesting too.
Women are more perilous sometimes, than any hi explosive.
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