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- Newsgroups: alt.drugs
- From: lewis@aera8700.mitre.org (Keith Lewis)
- Subject: Re: Seeking facts about N2O brain damage.
- Message-ID: <1993Jun23.172548.1186@linus.mitre.org>
- Date: Wed, 23 Jun 1993 17:25:48 GMT
-
- In article <1993Jun21.181707.4285@unislc.slc.unisys.com>, dale@unislc.slc.unisys.com (Dale Clark) writes:
- >CREATION PROCESS
- >----------------
- >Nitrous Oxide (laughing gas) is most commonly made by the thermal
- >decomposition of ammonium nitrate (NH4NO3). The chief impurity
- >of the product is N2, although, NO2, N, O2, and CO2 may also be present,
- >however, usually not in any quantity to approach toxcity. The resulting
- >mixture is passed through water for purification.
-
- You left out NO (nitric oxide), NH3 (ammonia), and H2O (water -- the other
- product of the *successful* reaction). _Laughing Gas_ also states that the
- temperature (optimum or self-regulating, I don't know) for the reaction is
- 240 C. But they caution against trying it at home:
-
- Occaionally, following in the footsteps of Priestly and Davy,
- individuals attempt to synthesize N2O. This is definitely not
- recommended, for several reasons. First, the synthetic process
- frequently employed (heating ammonium nitrate) may lead to an explosion,
- and has been the cause of major accidents and numerous injuries in the
- industrial synthesis of N2O. Second, other oxides of nitrogen may be
- obtained as byproducts of the synthetic process. One of these, nitrogen
- diooxide, is extremely toxic, and can lead to rapid destruction of lung
- tissue, even if inhaled in small quantities.
-
- From what I read on rec.pyrotechnics, nitrogen dioxide lung damage is
- permanant and cumulative.
-
- _Laughing Gas_ also states that the boiling point of N2O is -88.44 C and
- that the partial pressure at 27.4 C is 60 atm (!). Does that mean those
- little whippits can withstand 60 atm??
-
- I tend to think the danger of explosion is low if you keep the pressure
- down. The "Dr. Atomic" cartoon instructions even go so far as to make it an
- open system -- the end is a plastic bag LOOSELY HELD over the last hose. The
- good doctor says that you should only synthesize it if you are a
- professional chemist working under controlled laboratory conditions, but in
- the picture there is a home setup using three flasks. The first one
- contains the NH4NO3 and is heated. The third is a "bong" type device which
- bubbles the gas through water. The second is a trap to prevent the "bong"
- water from reaching the heated flask under negative pressure.
-
- I wouldn't really worry about inhaling small quantities of ammonia, but I'd
- like to figure out a way to neutralize the NO and NO2. Would they react
- with baking soda (in the bubble flask)?
-
- The PYRO file from rec.pyrotechnics lists two sources of ammonium nitrate.
- One is fertilizer, the other is "instant cold packs". I wonder how pure
- it is...
-
- --Keith Lewis klewis@mitre.org "Mr. Cheap"
- I don't dance to music; music dances to me. Email me for my PGP key.
- The above may not (yet) represent the opinions of my employer.
-
-
-