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joeflsts
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| Quote: | Originally posted by Zinc
| Quote: | Originally posted by joeflsts
I kept it on an ice bath for 24 hours after the reaction had completed
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Does it have to stand for one day or can I evaporate the solution sooner? |
I think you could evap it sooner.
joe
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zed
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Formaldehyde may not be a carcinogen, but it is a sensitizer. Been a lot of lawsuits in the U.S., over "environmental" illness caused by formaldehyde
exposure. I've known a few people who claimed to be suffering from this ailment. Trust me, you don't want to develop a case. Formaldehyde should be
respected, and used with good ventilation.
On a lighter note, here in the U.S., hexamine seems to be no big deal. Recently, a wholesaler/retailer was offering 500 kilo lots @ about $4.00/
kilo. I'm pretty sure all I'd need to close the deal..... is a pick-up truck, cash, and a valid ID.
Firearms and explosives materials, are fairly easy to access in the U.S.. It's almost never a problem. The youth of America have a penchant for
indulging in psychedelic chemistry experiments, but very little inclination to intentionally harm others.
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ScienceSquirrel
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I must admit to having been exposed to huge amounts of formaldehyde.
Formaldehyde was used for pickling rats etc and back in the days when there was a lot of practical dissection in biology courses you were exposed to a
lot of the stuff.
It may be weakly carcinogenic but no more than that. Generations of medical students spent weeks chopping up cadavers soaked in the stuff and their
rates of cancer were not more than comparable professional groups.
Hexamine must be available almost everywhere if you know where to look.
It is a last chance, survival fuel for camping.
If all else fails then it will heat up a billy for a hot drink.
[Edited on 9-10-2008 by ScienceSquirrel]
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chemrox
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watch ebay- I found a few pounds very cheap.. not sure what to do with it... no it's not for sale but thanks all the same. ;^0
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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roXefeller
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Quote: Originally posted by Rosco Bodine  | Actually paraformaldehyde mildewcide and strong ammonium hydroxide blueprint developer spontaneously combine to form hexamine very easily . Any
alkali depolymerizes para very easily , which the ammonia does , and then further reacts in the usual way known to those who are skilled in the art
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Sadly this got ignored from the conversation, casting your pearls before the swine, but what strength is that developer, I can't seem to find where
anybody used to use NH4OH to make blueprints?
[Edited on 1-1-2014 by roXefeller]
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hyfalcon
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You might want to read this thread.
http://www.sciencemadness.org/talk/viewthread.php?tid=14739
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