| Pages:
1
2 |
Ebao-lu
Unregistered
Posts: N/A
Registered: N/A
Member Is Offline
|
|
Then you should find it. Why dont you want to do your RDX from urotropine dinitrate? It would be more safe. There is even a route from
CTMTNA(cyclotrimethylenetrinitrosoamine) with H2O2 (here they use very low temp, if i remember correctly)
[Edited on 27-2-2009 by Ebao-lu]
|
|
|
WaveFront
Harmless
Posts: 31
Registered: 1-1-2005
Location: Southern Europe
Member Is Offline
Mood: curious
|
|
Yes, it should be more safe from the dinitrate. Anyway, I had a mixture of ideas in mind due to the lack of reactives, the obsessive idea for me was
to find a source o perfectly anhydrous nitric, fot this nitration or others.
Now I am happy because I know that I can distillate nitric and later add a little of dehydrated phosphoric and it will probably work well. (Avoiding
allways poisonous PH3)
Pyrex glass should be resistant to hot phosphoric. I am not worried about the acid fumes, they are easy to neutralize and ventilate.
I am a bit lazy now, for personal reasons. But all of this is relatively safe in mg or drops scale. I love drop scale. In seconds, you can boil
gently a couple drops a H2O2 in a spoon and make it so concentrated that you can carbonize wood.
If I make further advances about this, promise to share 
|
|
|
DJF90
International Hazard
Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline
Mood: No Mood
|
|
No, pyrex glass is not resistant to hot phophoric, at least not hot conc. phosphoric. This was mentioned upthread if you cared to read.
| Quote: |
Bear in mind that hot conc. phosphoric acid also etches glass
|
| Quote: |
Glass is not INERT to hot conc H3PO4
|
Any source of perfectly anhydrous nitric acid you get will not stay anhydrous for very long. It will absorb water vapour from the atmosphere to dilute
itself.
[Edited on 28-2-2009 by DJF90]
|
|
|
WaveFront
Harmless
Posts: 31
Registered: 1-1-2005
Location: Southern Europe
Member Is Offline
Mood: curious
|
|
Pyrex glass is more resistant than normal glass (high content silicon dioxide). For an amateur experiment, it should be enough.
http://www.springerlink.com/content/70r0r1108t918174/fulltex...
EDIT
But definitely not inert, and is expensive for damage it. Even quartz is not totally resistant:
http://www.dl-ld.com/doce/indexe02.htm
[Edited on 28-2-2009 by WaveFront]
|
|
|
Ebao-lu
Unregistered
Posts: N/A
Registered: N/A
Member Is Offline
|
|
test tubes are quite resistant. i've concentrated H3PO4 in them for prolonged time, and their weight did not change (i have a precision of 100mg).
|
|
|
Nitro-esteban
Harmless
Posts: 39
Registered: 10-4-2013
Location: Fifth dimension
Member Is Offline
Mood: inert
|
|
Its true, test tubes are far more resistant than other types of glass. They even resist hot sodium hydroxide for short a time.
|
|
|
| Pages:
1
2 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
