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Author: Subject: Nitrourea details?
LardmanAttack
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[*] posted on 12-11-2019 at 00:35
Nitrourea details?


Wondering about the VOD and other details of Nitrourea, info on it online is sparse.
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underground
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[*] posted on 12-11-2019 at 04:27


Use your Search engine

http://www.sciencemadness.org/talk/viewthread.php?tid=11037

http://www.sciencemadness.org/talk/viewthread.php?tid=18607#...

[Edited on 12-11-2019 by underground]
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[*] posted on 13-11-2019 at 02:33


Quote: Originally posted by underground  
Use your Search engine

http://www.sciencemadness.org/talk/viewthread.php?tid=11037

http://www.sciencemadness.org/talk/viewthread.php?tid=18607#...

[Edited on 12-11-2019 by underground]


Neither of these links have a direct reference to the VOD. You don't need to be so rude.

[Edited on 13-11-2019 by LardmanAttack]
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B(a)P
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[*] posted on 13-11-2019 at 03:23


THE PREPARATORY MANUAL OF EXPLOSIVES
A LABORATORY MANUAL
Jared B. Ledgard, A.A.S., B.S., M.A

This is in the SM library, but in case you haven't seen it. No VOD though.

Nitrourea forms colorless to whitish plate like crystals that begin to decompose when heated to 158 Celsius. The crystals are soluble in alcohol, acetic acid, and acetone—they are insoluble in cold water. The nitrate and perchlorate salts of nitrourea are prepared by treating nitrourea with the corresponding acids—the nitrate and perchlorate salts are used in fireworks, and a variety of pyrotechnic compositions. Nitrourea has limited use in explosives due to its lack of explosives power, but it can be used in rocket propellants and gunpowders. Nitrourea is also commonly used in making other explosives. It requires a significant detonator or booster for initiation.
Procedure 22-04A: Preparation of NU
Summary: Nitrourea is prepared by reacting urea with concentrated sulfuric acid at 0 Celsius, followed by treatment with 70% nitric acid. Thereafter, the reaction mixture is treated with ice, and the product collected by filtration.
Hazards: Wear gloves when handling 70% nitric acid, and 98% sulfuric acid. 98% sulfuric can cause severe burns along with 70% nitric acid.
Molecular weight: 105.053

Flammability: Burns with smoky flame, but may flash on ignition
Detonating velocity: Uncalculated
Toxicity: Low
Sensitivity: Very low
Classification: Secondary explosive
Stability: Very good
Overall value (as secondary explosive): Moderate
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[*] posted on 13-11-2019 at 03:34


Its VoD is a bit less from nitroguanidine, so it would be close to +8000m/s at max density. Nitrourea is very sensitive towards water. It tends to hydrolyse and it is not very storage stable. On the other hand nitroguanidine is very stable but due to its crystal structure (fiber like), it is hard to press at high density. Both are very insensitive.

[Edited on 13-11-2019 by underground]
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[*] posted on 13-11-2019 at 23:59


Quote: Originally posted by underground  
Its VoD is a bit less from nitroguanidine, so it would be close to +8000m/s at max density. Nitrourea is very sensitive towards water. It tends to hydrolyse and it is not very storage stable. On the other hand nitroguanidine is very stable but due to its crystal structure (fiber like), it is hard to press at high density. Both are very insensitive.

[Edited on 13-11-2019 by underground]


Yes, but I was specifically wondering if there was a direct reference to the VoD in any papers written, so I can get an actual tested and confirmed number, rather than just estimations.
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[*] posted on 15-11-2019 at 03:25


Quote: Originally posted by B(a)P  
THE PREPARATORY MANUAL OF EXPLOSIVES
A LABORATORY MANUAL
Jared B. Ledgard, A.A.S., B.S., M.A

The nitrate and perchlorate salts of nitrourea are prepared by treating nitrourea with the corresponding acids—the nitrate and perchlorate salts are used in fireworks, and a variety of pyrotechnic compositions. Nitrourea has limited use in explosives due to its lack of explosives power, but it can be used in rocket propellants and gunpowders.


It is Ledgard, mate. I rather doubt if such salts (nitrate and perchlorate) of nitrourea exist. And what mean "lack of explosives power"? I read that nitrourea is more powerful than even TNT. "The N-substituted-N-nitrourea functionality is also associated with a low sensitivity to ... (IHE) and exhibits good performance (VOD ∼ 7580 m/s, d = 1.99 g/cm3)." Jai Prakash Agrawal, ‎Robert Hodgson - 2007 - ‎Science




Women are more perilous sometimes, than any hi explosive.
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[*] posted on 15-11-2019 at 04:06


Agrawal over Ledgard any day !



The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
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