| Pages:
1
..
3
4
5
6
7
..
81 |
12332123
Harmless
Posts: 38
Registered: 14-11-2009
Member Is Offline
Mood: No Mood
|
|
See http://link.springer.com/article/10.1023%2FA%3A1022503310689...
It seems that dinitrourea reacts with hydroxylamine to form hydroxynitrourea, and with hydrazine to nitrosemicarbazide.
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
Quote: Originally posted by 12332123  |
It seems that dinitrourea reacts with hydroxylamine to form hydroxynitrourea, and with hydrazine to nitrosemicarbazide. |
How hydroxylamine solution can be prepared ?
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
Dissolving PIB
With a little search i have found that the bicycle tire inner tube is made out of PIB, so. i just took a small piece of that material, and dip it into
some gasoline, but it looks like it can not be dissolved by gasoline, so i was wondering what else solvent can i use to dissolve that ?
[Edited on 7-3-2014 by underground]
|
|
|
confused
Hazard to Others
Posts: 244
Registered: 17-3-2013
Location: Singapore
Member Is Offline
Mood: tired
|
|
Have you tried using hexane or pentane?
[Edited on 7-3-2014 by confused]
|
|
|
VladimirLem
Hazard to Others
Posts: 204
Registered: 24-5-2010
Member Is Offline
Mood: Have no fear <Vlad> is here.
|
|
| Quote: Originally posted by underground | With a little search i have found that the bicycle tire inner tube is made out of PIB, so. i just took a small piece of that material, and dip it into
some gasoline, but it looks like it can not be dissolved by gasoline, so i was wondering what else solvent can i use to dissolve that ?
[Edited on 7-3-2014 by underground] |
PIB is soluble in gasoline (benzine) but if it is some layer of a pipe, it will need days to dissolve...if you had a block of PIB, just make it tol
small pieces with a scissor
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
Ive just saw that before i saw your post, thx anyways.
Do you know any other routes to nitrosemicarbazide?
and for underground, have you tried acetone ?
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
PIB can not be dissolved by acetone
| Quote: Originally posted by VladimirLem |
PIB is soluble in gasoline (benzine) but if it is some layer of a pipe, it will need days to dissolve...if you had a block of PIB, just make it tol
small pieces with a scissor
|
I used gasoline (i guess it is different than benzine) from petrol stations, is this going to work or not ? Does it need pure benzine ?
[Edited on 7-3-2014 by underground]
|
|
|
VladimirLem
Hazard to Others
Posts: 204
Registered: 24-5-2010
Member Is Offline
Mood: Have no fear <Vlad> is here.
|
|
| Quote: Originally posted by underground |
I used gasoline (i guess it is different than benzine) from petrol stations, is this going to work or not ? Does it need pure benzine ?
[Edited on 7-3-2014 by underground] |
jesus...i allways hated the way american people call this stuff...
just benzine/petrol for cars...
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
Methanol. NH2OH.HCl. NaOH. Stirr till NaOH has dissolved and filter precipitated sodium chloride. Gives a methanolic hydroxylamine solution.
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
| Quote: Originally posted by The_Davster |
Methanol. NH2OH.HCl. NaOH. Stirr till NaOH has dissolved and filter precipitated sodium chloride. Gives a methanolic hydroxylamine solution.
|
From were i can obtain NH2OH ?
Also for those who are interensted in BIP, read this topic
http://parazite.nn.fi/roguesci/index.php/t-1739.html
|
|
|
Zyklon-A
International Hazard
Posts: 1547
Registered: 26-11-2013
Member Is Offline
Mood: Fluorine radical
|
|
I'm interested in dissolving PIB too.
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
So i correctly use that thing, correct ? It looks like for some reason benzine/petrol (  ) can not dissolve bicycle tire inner tube 
|
|
|
roXefeller
Hazard to Others
Posts: 463
Registered: 9-9-2013
Location: 13 Colonies
Member Is Offline
Mood: 220 221 whatever it takes
|
|
It seems that despite the confusion over petrol/gasoline/benzin pib should be soluble in either. But it could be difficult given the molecular
weight. You may need small pieces and refluxed until it softens or dissolves. That would also be a good time to add the plasticizer. I found
quicksilver's suggestion of bird repellent polybutene a good alternative.
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
That was NH2OH.HCl, hydroxylamine hydrochloride. no OTC source that I know, but it can be made, see old posts by I think Axt.
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
does II salts of diamino/triamino guanidine exist? The interesting derivatives would be diamino/triamino dinitrate, which is mentioned in this patent.
http://www.google.com/patents/EP1121336A2?cl=en
These 2 compounds will have high gas production/ nitrogen content/ density/ and low sensitivity/cost/ and carbon content.
No other papers/patent or any report or research has mention these 2 compounds, or at least on google.
[Edited on 9-3-2014 by DubaiAmateurRocketry]
|
|
|
underground
National Hazard
Posts: 702
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
| Quote: Originally posted by The_Davster |
That was NH2OH.HCl, hydroxylamine hydrochloride. no OTC source that I know, but it can be made, see old posts by I think Axt. |
I can not find anything about NH20H solutions
I found only some informations about how to form hydroxylamine hydrochloride from NM acetic acid and HCL. But i do not know if a solution of NH2OH.HCL
can react with other nitrogroups like dinitrobiuret to for dihydroxylammonium dinitrobiuret, or dinitroguanidine to form hydroxylammonium
dinitroguanidine e.t.c.
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
Is there any energetic compound on hydroxygaunidine and its derivatives?
It can be protonated to produce salts like http://www.sigmaaldrich.com/catalog/product/sigma/h7654?lang...
I also think its derivatives would be very interesting/ energetic.
|
|
|
Dany
Hazard to Others
Posts: 482
Registered: 3-8-2013
Member Is Offline
Mood: No Mood
|
|
Compared to guanidine, hydroxyguanidine represent a better oxidized moiety. Energetic material (salt or molecular compound) may have
interesting energetic properties (performance) however when you realize that 50 mg of hydroxyguanidine sulfate salt cost 220 euro or 306 USD, any
interesting applications for these compounds is lost until a new synthetic method is found to produce hydroxyguanidine derivatives in low cost.
Dany.
[Edited on 15-3-2014 by Dany]
|
|
|
Trinitrophenol
Harmless
Posts: 10
Registered: 6-10-2013
Member Is Offline
Mood: Bitter
|
|
| Quote: Originally posted by underground | With a little search i have found that the bicycle tire inner tube is made out of PIB, so. i just took a small piece of that material, and dip it into
some gasoline, but it looks like it can not be dissolved by gasoline, so i was wondering what else solvent can i use to dissolve that ?
[Edited on 7-3-2014 by underground] |
Xylene also works. Some types of chewing gum contain PIB as a base. So if you want to isolate pure PIB dissolve as much impure PIB such as bike tire
or chewing gum in xylene as possible. Then there will be a clear layer ontop of the xylene witch conatains the PIB. Then go ahead and extract this
layer with a syringe or pipete. Then combine the PIB/xylene With acetone at a 50/50 ratio. This will then precipitate your pure PIB.
Then just Fish this up with a little match stick or something similar and dry it.
Btw if the rubber dosent dissolve in xylene its not PIB ;
Why you want to isolate PIB btw?
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
| Quote: Originally posted by Dany |
Compared to guanidine, hydroxyguanidine represent a better oxidized moiety. Energetic material (salt or molecular compound) may have
interesting energetic properties (performance) however when you realize that 50 mg of hydroxyguanidine sulfate salt cost 220 euro or 306 USD, any
interesting applications for these compounds is lost until a new synthetic method is found to produce hydroxyguanidine derivatives in low cost.
Dany.
[Edited on 15-3-2014 by Dany] |
Alright true, but, Sigma extremely over price everything.
http://www.sigmaaldrich.com/catalog/product/aldrich/s849022?...
this compound can be synthesized from 2 extremely industrialized cheap compound - Nitropropane and formaldehyde, however they sell 50mg for nearly 100
dollars!
Do you have any information about my question 2 posts above?
Thanks
|
|
|
Dany
Hazard to Others
Posts: 482
Registered: 3-8-2013
Member Is Offline
Mood: No Mood
|
|
Maybe Sigma-Aldrich are overpriced but you must take onto account the purity of the compound. It is true that a compound may be possess a facile
synthesis but this is not all the story. Purifying the resulting products can be very challenging and tedious, so the compound may be very expensive.
Other chemical company can sell chemicals with competitive price. I prefer TCI chemical when compared to Sigma-Aldrich.
For the second question, my quick search didn't result in any high energy materials based on hydroxyguanidine.
Dany.
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
| Quote: Originally posted by Dany | Maybe Sigma-Aldrich are overpriced but you must take onto account the purity of the compound. It is true that a compound may be possess a facile
synthesis but this is not all the story. Purifying the resulting products can be very challenging and tedious, so the compound may be very expensive.
Other chemical company can sell chemicals with competitive price. I prefer TCI chemical when compared to Sigma-Aldrich.
For the second question, my quick search didn't result in any high energy materials based on hydroxyguanidine.
Dany. |
Yes, ive also found TCI cheaper in many products.
I meant 2 post up as in this post, the diamino/triamino guanidine dinitrate salt.
| Quote: Originally posted by DubaiAmateurRocketry | does II salts of diamino/triamino guanidine exist? The interesting derivatives would be diamino/triamino guanidine dinitrate, which is mentioned in
this patent.
http://www.google.com/patents/EP1121336A2?cl=en
These 2 compounds will have high gas production/ nitrogen content/ density/ and low sensitivity/cost/ and carbon content.
No other papers/patent or any report or research has mention these 2 compounds, or at least on google.
[Edited on 9-3-2014 by DubaiAmateurRocketry] |
^ When I said on google I meant my searches, you might find something else.
Also, the last time I purchase chemicals, I used an intermediate company, they search the market to find the cheapest pricing for the products I
wanted out of countless chemical companies, and then they order them for me and send it to me, its much cheaper in the end if you only buy from 1
company because some company are better than others in producing one product. You just have to pay them little bit service fee.
[Edited on 16-3-2014 by DubaiAmateurRocketry]
|
|
|
PHILOU Zrealone
International Hazard
Posts: 2893
Registered: 20-5-2002
Location: Brussel
Member Is Offline
Mood: Bis-diazo-dinitro-hydroquinonic
|
|
Funny 
About two monthes ago I had the same ideas.
The compounds should be cheap but as not requested much their price is very high.
Like amino, diamino and triaminoguanidine or amino and diamino urea... it is only a mater to allow the free base to react with urea or
guanidine...more volatile NH3 is freed from the reaction media (NH3 is more volatile than N2H4 or NH2OH).
As potent materials with increased density, stored energy and OB; there are also:
-hydroxyurea (HONH-C(=O)-NH2)
and
-dihydroxyurea (HONH-C(=O)-NHOH)
-hydroxyguanidine (NH2-C(=NH)-NHOH)
-dihydroxyguanidine (HONH-C(=NH)-NHOH)
and
-trihydroxyguanidine (HONH-C(=NOH)-NHOH)
Note that the basicity of such hydroxylamino derivatives will be less than urea and so very strong acids will be needed to make salts with them
(nitrate, perchlorate, nitroformiates, tetranitroethandiates, dinitramides,...). There is a chance it doesn't work for the trihydroxyguanidine or
dihydroxyurea.
They will eventually be acidic and form primary salts.
They might cyclise into 1,2,4,5-tetrazine derivatives especially the molecules bearing both amino/imino and hydroxylamino/hydroxylimino groups.
[Edited on 17-3-2014 by PHILOU Zrealone]
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
|
|
|
DubaiAmateurRocketry
National Hazard
Posts: 841
Registered: 10-5-2013
Location: LA, CA, USA
Member Is Offline
Mood: In research
|
|
So dinitrate salts are possible?
Yes, however can we still protonate compounds like trihydroxyguanidine? will it be unstable?
Also, does hydroxyhydrazine exist ? or aminohydroxylamine.
|
|
|
Bert
Super Administrator
Posts: 2821
Registered: 12-3-2004
Member Is Offline
Mood: " I think we are all going to die. I think that love is an illusion. We are flawed, my darling".
|
|
Don't want to continue sidetracking of "Tetranitomethane/toluene explosive mixture myth" thread, BUT:
Crazy thought- Anyone tried mixing a small % of microballoons into Hg(ONC)2 and pressing the mixture at a similar pressure as is known to
"dead press" the straight material?
Rapopart’s Rules for critical commentary:
1. Attempt to re-express your target’s position so clearly, vividly and fairly that your target says: “Thanks, I wish I’d thought of putting it
that way.”
2. List any points of agreement (especially if they are not matters of general or widespread agreement).
3. Mention anything you have learned from your target.
4. Only then are you permitted to say so much as a word of rebuttal or criticism.
Anatol Rapoport was a Russian-born American mathematical psychologist (1911-2007).
|
|
|
| Pages:
1
..
3
4
5
6
7
..
81 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
