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JibbyDee
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Most extreme compounds known to man
I like to know examples of compounds that exhibit a specific property more than any other known compound, so I can use it as a reference point. I'll
throw in my knowledge, can you add your own knowledge of the most extreme compounds. If you know multiple extreme compounds list your top 3, in order
of descending extremity.
Strongest Taste
Denatonium Benzoate
They add trace amounts of this to denatured alcohol to instill in it, an extremely bitter taste which would deter most people from drinking it.
Smelliest
Ethanethiol
According to the wiki page, this compound held the 2000 Guinness world record for smelliest compound. I'm sure there are smellier ones though.
Most Flammable
Chlorine Trifluoride
From what I read, the nazis were interested in this compounds potential as an incendiary but concluded that it was too dangerous to handle and
abandoned it.
Most Explosive
Octanitrocubane
From what I've read, cubanes cubic shape allows it to pack very well so octanitrocubane contains a much greater amount of nitro groups per cubic
centimeter than other nitro explosives such as TNT.
Most Acidic
Fluoroantimonic Acid
An antimony-fluorine complex which is supposedly 2 x 10^19 times more acidic than pure sulfuric acid. I like this one because its the first time I've
seen antimony used to create a property that as of yet, cannot be produced with other elements.
Carborane Acid
From what I've read, trifluoromethane sulfonic acid was the strongest acid known up until carborane acid was discovered.
Trifluoromethanesulfonic Acid
I like to think of this compound as sulfuric acid on steroids. Fluorinating a weak acid like acetic acid results in trifluoroacetic acid, the
strongest known carboxylic acid which has a pKa of -0.25. Fluorinating a strong acid such as sulphuric acid results in fluorosulphonic acid which has
a pKa of -14. Attach a methyl group so that triple the amount of fluorine atoms can be attached and you get trifluoromethanesulphonic acid which has a
pKa of -16.
I have way more to add to that list but I'll leave it at that for now.
[Edited on 17-12-2011 by JibbyDee]
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Bot0nist
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Chlorine Trifluoride isn't flammable at all. It just causes most fuels to auto ignite. It has a rating of 0 for flammability on its MSDS.
Cool thread concept though.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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Adas
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That's very interesting topic. Especially the first one.
Rest In Pieces!
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Bot0nist
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Its in almost everything as a bitterant. Check your "100% Acetone" bottle's ingredients.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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simba
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I have been wondering for quite some time if there is any compound that has 4/4/4 in NFPA 704 danger classification.
If anyone knows, let us know also.
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bbartlog
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The Germans didn't abandon ClF3. It was never successfully weaponized but they produced multi-ton quantities of the stuff. The Russians eventually
captured the factory, I believe.
I can't recall seeing a 4/4/4 danger classification. But good old hydrazine is 4/4/3.
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simba
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Quote: Originally posted by bbartlog  | The Germans didn't abandon ClF3. It was never successfully weaponized but they produced multi-ton quantities of the stuff. The Russians eventually
captured the factory, I believe.
I can't recall seeing a 4/4/4 danger classification. But good old hydrazine is 4/4/3. |
Yeah, I've seen quite a couple of chemicals with 4/4/3, like diborane, germane etc, but never a 4/4/4.
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MagicJigPipe
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| Quote: | | Its in almost everything as a bitterant. Check your "100% Acetone" bottle's ingredients. |
Checked it. No denatonium benzoate.
"There must be no barriers to freedom of inquiry ... There is no place for dogma in science. The scientist is free, and must be free to ask any
question, to doubt any assertion, to seek for any evidence, to correct any errors. ... We know that the only way to avoid error is to detect it and
that the only way to detect it is to be free to inquire. And we know that as long as men are free to ask what they must, free to say what they think,
free to think what they will, freedom can never be lost, and science can never regress." -J. Robert Oppenheimer
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hissingnoise
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Least meaningful . . .
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blogfast25
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Also quite 'extreme': XeO4
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phlogiston
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dicyanoacetylene => the hottest known flame temperature (5260K / 4900C in oxygen)
3-Nitrobenzanthrone => most carcinogenic compound known (identified in diesel exhaust)
1,8-dinitropyrene => second most carcinogenic compound known (also from diesel exhaust...)
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neptunium
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nitrogene triiodide has been poorly studied because of its well known sensitivity
copper acetylide is the only explosive as far as i could find that doesnt produce gasses when detonated.
tungsten carbide melts at 2800c and boil at 6000!
lithium fluoride is probably the most stable salt i`ve seen
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Bot0nist
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| Quote: Originally posted by MagicJigPipe | | Quote: | | Its in almost everything as a bitterant. Check your "100% Acetone" bottle's ingredients. |
Checked it. No denatonium benzoate. |
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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simba
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Fluorine (F2) is the strongest oxidizing agent if I'm not wrong.
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nezza
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I thought lead azide has the fastest velocity of propagation for non-nuclear explosives. Does Octanitrocubane beat it ?.
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neptunium
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yup nothing beats good old fluorine ... violents reaction garranteed with H2 even with liquid hydrogen at 20 K when F2 is solid
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AndersHoveland
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The two most oxidizing compounds that has been isolated contain the AgF2[+] or NiF3[+] ions. From what I know, researchers have been unable to
determine which is stronger because it is so difficult to measure. These ions are so oxidizing that they can spontaneously oxidize chlorine to all the
way to ClF6[+].
http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=Get...
Technically, the "strongest" acid yet prepared is dodeca-fluorocarborane acid, http://www.nature.com/news/2004/041115/full/news041115-5.htm...
B(CF3)4[-] is the probably the most inert anion, with the least interaction towards "naked" hydrogen ions.
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zoombafu
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The smallest (neutral) atom is the hydrogen atom. Bet you guys didn't see that one coming.
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plante1999
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I already read somthing about this compound and XeO3 , but how the hell , A
compound of oxygen and an inert gas can exist at 0degree C....
[Edited on 19-12-2011 by plante1999]
I never asked for this.
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neptunium
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F2 is such an energetic oxidizer it will capture an electron from ALL other elements exept Helium , Neon and Argon...
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ScienceSquirrel
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| Quote: Originally posted by Bot0nist | Chlorine Trifluoride isn't flammable at all. It just causes most fuels to auto ignite. It has a rating of 0 for flammability on its MSDS.
Cool thread concept though.
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It is a tad better than that, not many things are hypergolic with asbestos! 
http://en.wikipedia.org/wiki/Chlorine_trifluoride#Rocket_pro...
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paulr1234
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Dimethyl Mercury
Most potent inorganic neurotoxin (I think Botulism is actually the most potent neurotoxin but given that it is a naturally occurring protein, I'm not
sure where it should sit in a chemical taxonomy).
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Bot0nist
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Dihydrogen Monoxide
http://www.sciencedaily.com/releases/2011/11/111109111536.ht...
http://www.neatorama.com/2008/08/22/5-really-weird-things-ab...
Water, while extremely common to us, is really rather weird.
[Edited on 19-12-2011 by Bot0nist]
U.T.F.S.E. and learn the joys of autodidacticism!
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phlogiston
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The hardest material known: Aggregated diamond nanorods
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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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simba
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| Quote: Originally posted by paulr1234 | | Most potent inorganic neurotoxin (I think Botulism is actually the most potent neurotoxin but given that it is a naturally occurring protein, I'm not
sure where it should sit in a chemical taxonomy). |
Botulinum is in fact the most acutely toxic substance known. Less than a kilo is enough to kill the whole planet.
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