Hunterman2244
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Nitrocellulose peroxide
Peroxides of cellulose have been shown to form(e.g.
https://onlinelibrary.wiley.com/doi/abs/10.1002/app.1979.070...), would this also apply to nitrocellulose?
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UC235
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No, they're using cellulose that's been chemically modified to break rings open with the formation of aldeydes. The peroxides are present as
relatively unstable (with respect to loss of H2O2) aldehyde peroxy-hydrates. Nitration of cellulose blocks the hydroxyl groups needed for the
ring-opening oxidation to happen. If you tried to do the peroxidation first, I don't think any of the introduced peroxy groups would survive nitration
and the aldehyde groups replacing hydroxyl groups could no longer be nitrated.
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Laboratory of Liptakov
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It seems that many researchers are fascinated in a peroxides of any types. By the way, result will only and again organic peroxide. If ever something.
...
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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Hunterman2244
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Quote: Originally posted by UC235  | | No, they're using cellulose that's been chemically modified to break rings open with the formation of aldeydes. The peroxides are present as
relatively unstable (with respect to loss of H2O2) aldehyde peroxy-hydrates. Nitration of cellulose blocks the hydroxyl groups needed for the
ring-opening oxidation to happen. If you tried to do the peroxidation first, I don't think any of the introduced peroxy groups would survive nitration
and the aldehyde groups replacing hydroxyl groups could no longer be nitrated. |
Thanks!
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Hunterman2244
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How about using dinitrogen pentoxide?
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hissingnoise
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No! Even if you could prepare the anhydride it will do no more than nitrate the cellulose.
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Hunterman2244
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Ok, was really just wondering the reaction.
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Rocinante
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Liptakov: geminal hydroxyperoxides are quite stable and worthwile to look at
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DubaiAmateurRocketry
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From TATP's 0.5J/1N sensitivities to around 1-5J and 3-5N.
A good improvement, but the friction sensitivity is still too high to be practical.
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Laboratory of Liptakov
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Rocinate, I looked on geminal peroxides. Great propertties. Easy synthesis. But start precursor will some unavailable. Is not clear from text what is
it. ..
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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Rocinante
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Lead azide is like 0.5 N, 3 N is plenty enough for blasting caps and such.
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nitro-genes
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Noticed an existing thread on geminal hydroperoxides --> http://www.sciencemadness.org/talk/viewthread.php?tid=63440
Would (similar to terephtalic acid) trimesic acid also be able to form a geminal hydroperoxide? Couldn't help thinking of the legendary DPPP patent...
 (Although condensation of acetone all the way to mesitylene doesn't seem likely
under these conditions though)
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Laboratory of Liptakov
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A series of geminal hydroperoxides were synthesized from their corresponding ketones or aldehydes (see Fig.1) and 30-50 wt% hydrogen peroxide (H2O2)
in the presence of molecular iodine (I2) or hydrogen chloride as catalyst.
OK .......What is it corresponding keton and aldehyde...?
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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nitro-genes
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Oops, the carboxilic acid is not the starting point it seems indeed, thanks Liptakov.  The aldehyde could be one of the oxidation intermediates from mesitylene though...but then again, direct oxidation of methyl groups for
any potential mesitylene formed would probably not be favorable anyway, instead ring chlorination or hydroxylation being more likely.
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Laboratory of Liptakov
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For amateur examinations is important using some precursor, which is available, or is possible his easy preparation from available compounds. Or else,
his atractivity is ending in the passage of history.
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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