Hydrazine was a rare chemical in terms of production quantities at the time and
ammonia despite all it’s headaches was the best trade.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
<http://www.cesaronitech.com/> http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf Of
roxanna Mason
Sent: Wednesday, April 15, 2020 9:34 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: fun with Teflon (was Re: SN3 dies from Corona.....)
I once asked Truax why the X-15 used ammonia, he said they preferred hydrogen
but,as you mentioned Anthony, went to the closest hydrogen containing analog
that was readily available, farm fertilizer, anhydrous ammonia,They also
considered hydrazine but the worlds production in the 50's was measured in
pounds not tons so unavailability shot that down.
On Wed, Apr 15, 2020 at 4:56 PM Anthony Cesaroni <anthony@xxxxxxxxxxx
<mailto:anthony@xxxxxxxxxxx> > wrote:
IIRC, it was traded as a fuel/oxidizer during preliminary X-15 development and
quickly discounted for all the obvious reasons.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
<http://www.cesaronitech.com/> http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx>
<arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx> > On Behalf
Of 1bcjolly
Sent: Wednesday, April 15, 2020 7:47 PM
To: arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: fun with Teflon (was Re: SN3 dies from Corona.....)
If I'm not mistaken, Harry Stine wrote that 3 ppm of aniline could be lethal.
Barry
Sent from my Sprint Tablet.
-------- Original message --------
From: Anthony Cesaroni <anthony@xxxxxxxxxxx <mailto:anthony@xxxxxxxxxxx> >
Date: 4/15/20 18:22 (GMT-05:00)
To: arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: fun with Teflon (was Re: SN3 dies from Corona.....)
I’m surprised how casual and humored that guy is. Those activities under a fume
hood are begging for trouble.
Aniline can be nasty stuff as it can penetrate skin and enter the blood stream
causing methemoglobinemia and hemolysis. Methylene blue is commonly used as an
antidote. The bottom line is you’ll either be blue and dead or blue for a few
weeks from the treatment. https://www.atsdr.cdc.gov/MMG/MMG.asp?id=448 ;
<https://www.atsdr.cdc.gov/MMG/MMG.asp?id=448&tid=79> &tid=79
I tested it with nitric acid once and never messed with it again. I did it
outside. Reactants in separate glass vials taped together and swung remotely at
a concrete blast wall. Poof.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
<http://www.cesaronitech.com/> http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx>
<arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx> > On Behalf
Of Craig Fink
Sent: Wednesday, April 15, 2020 10:33 AM
To: arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: fun with Teflon (was Re: SN3 dies from Corona.....)
Video of the pyrofoil?
"Safety First!"
https://youtu.be/SRj7GpL3Reo?t=283
"Well no, it's just, Stupidity Last!"
LOL, Youtube, doing all the dangerous things on video for your enjoyment, so
you don't have too.
Nice to know safety tip, Nitric Acid, It'll light many things on fire, but your
not one of them.
Fun stuff, builds a proper rocket nozzle but luckily it doesn't generate enough
pressure to have attached flow in the engine bell. You can see the detached
backflow in the bell.
On Tue, Apr 14, 2020 at 8:43 AM Anthony Cesaroni <anthony@xxxxxxxxxxx
<mailto:anthony@xxxxxxxxxxx> > wrote:
ICI made a material called "Pyrofoil at one time. It was a layer of Teflon
calendared onto magnesium foil. IIRC it had a burn rate measured in many
feet per second.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx>
<arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx> > On Behalf
Of Henry Spencer
Sent: Monday, April 13, 2020 11:29 PM
To: Arocket List <arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx> >
Subject: [AR] fun with Teflon (was Re: SN3 dies from Corona.....)
Until one of those sexy magnesium atoms comes flouncing past, at which point
the fluorines abandon the carbon like yesterday's garbage and go grab the
newcomer, releasing a good many kilocalories in the process.
Best not to try this at home; people who think Teflon is "really stable"
tend to underestimate how violent such reactions can be.
See, e.g., <https://www.youtube.com/watch?v=fSsgFVSYhv8> and
<https://www.youtube.com/watch?v=YRhmNROtH44>.
If you read the fine print on packages of Teflon-based lubricants, you'll
find they typically advise against use in situations where the stuff might
be exposed to seriously-hot metal or metal-on-metal impact.
Henry
--
Craig Fink
WeBeGood@xxxxxxxxx <mailto:WeBeGood@xxxxxxxxx>
