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Author: Subject: Most extreme compounds known to man
neptunium
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[*] posted on 19-12-2011 at 17:22


well thats more poisonous than plutonium now isnt it!
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paulr1234
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[*] posted on 19-12-2011 at 22:04


I think I'd be willing to hold a small piece of Plutonium in my ungloved hand for a second, I don't think I'd do that with a drop of Dimethyl Mercury:

http://www.fortfreedom.org/p22.htm

The former would make a great picture for Facebook !
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AndersHoveland
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[*] posted on 20-12-2011 at 20:21


Quote: Originally posted by shivas  

Botulinum is in fact the most acutely toxic substance known. Less than a kilo is enough to kill the whole planet.


Yes, it is a shame researchers have not yet developed a chemical synthesis for this lethal enzyme.
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Bot0nist
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[*] posted on 20-12-2011 at 20:55


Such a shame. (sarcasm)



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[*] posted on 21-12-2011 at 07:25


1 kilo wow that is truly amazing.. i wonder why no one has weoponised it.. although that might explain some bad takeaway ive had ;)
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[*] posted on 21-12-2011 at 07:35


I might be mistaken but I though Batrachotoxin (poison arrow frog venom http://en.wikipedia.org/wiki/Batrachotoxin ) was the most potent neurotoxin... I still wouldn't like to try my chances with diethyl mercury like hahaha
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[*] posted on 21-12-2011 at 08:44


Quote: Originally posted by HexJam  
I might be mistaken but I though Batrachotoxin (poison arrow frog venom http://en.wikipedia.org/wiki/Batrachotoxin ) was the most potent neurotoxin... I still wouldn't like to try my chances with diethyl mercury like hahaha


The lethal dose of batrachotoxin is around 100 micrograms, while the lethal dose for botulinum is around 0.1 microgram.
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[*] posted on 21-12-2011 at 15:33


It looks like Tert-butyl hydroperoxide rates a 4 in each of the NFPA diamonds, as well as the OX (oxidizer) warning.

Of course we are talking the pure substance and not the typical 70% in water which is much more stable.

http://cameochemicals.noaa.gov/chemical/2692
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[*] posted on 21-12-2011 at 17:01


I'm fairy sure (because i remember reading it, lol), that the flavour of peas is the most potent, 3- methoxy-2-isobutyl pyrazine being 'tasteable' in peas albeit only there in ppb quantities, this opposed to 'smellable' chemicals which are different.

i may remember it incorrectly but hey you do a google search for 'pea molecule' and see what you get, thats another extreme altogether pardon the pun. i changed it to 'sweetpea' and got a bunch of hits regarding soppy romantic natural ethereal lovey subjects.




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[*] posted on 21-12-2011 at 19:18


Quote: Originally posted by bquirky  
1 kilo wow that is truly amazing.. i wonder why no one has weoponised it.. although that might explain some bad takeaway ive had ;)


I'm sure they have and I'm sure its unworthy, weapons of this nature are hard to make stronger first of all and making a kilo of a substance that could destroy the world is not on many people to-do list.


Its like the super potent opiates as weapons, they are just to hard to handle to be considered viable weapons. Sure they have been used in Russia during terrorist ordeals but there is just not much use in super potent weapons other then fear, that's why we have never seen another use of the Atomic bomb till this day. Total annihilation goes against what one normally looks for in the conclusion of any conflict, we normally look for total conformity, destroying our opposition is just a sad side effect of oppressing there will power.





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ThatchemistKid
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[*] posted on 21-12-2011 at 21:35


Dicyanoacetylene, highest flame temp achieved by burning an organic compound when it is burned with oxygen. 4990 degrees C when burned in oxygen, 5242 degrees C when burned in ozone.
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neptunium
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[*] posted on 22-12-2011 at 08:54


how about DNA ? thats an extremely complexe molecule ...the most complexe as far as we know...so far
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[*] posted on 22-12-2011 at 09:17


What about huge molecules from termosets like bakelite? Product can by made from ONE molecule (for ex. old iron - you know the thing which can your mom use for making your colthes flat)

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neptunium
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[*] posted on 22-12-2011 at 12:51


these are polymeres...they dont count as complexe its the same sequences of atoms...rite?
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Bot0nist
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[*] posted on 23-12-2011 at 06:20


Quote: Originally posted by neptunium  
these are polymeres...they dont count as complexe its the same sequences of atoms...rite?


"DNA consists of two long polymers of simple units called nucleotides, with backbones made of sugars and phosphate groups joined by ester bonds. These two strands run in opposite directions to each other and are therefore anti-parallel. Attached to each sugar is one of four types of molecules called nucleobases (informally, bases). It is the sequence of these four nucleobases along the backbone that encodes information." -wiki.

A great example neptunium, probably one of the best. This is a great and in depth wiki article on DNA. A great read.

http://en.m.wikipedia.org/wiki/DNA

[Edited on 23-12-2011 by Bot0nist]




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[*] posted on 24-12-2011 at 08:09


Does graphene count? It's one of the most extreme allotropes of carbon known, with a thermal conductivity exceeding that of diamond and a tensile strength exceeding that of the carbon nanotube.



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[*] posted on 24-12-2011 at 19:06


STRONGEST SMELL

T-butyl mercaptan blends which are added to odorless natural gas (cooking uses) and to serve warning of gas leaks.

Note, butanethiol (butyl mercaptan) derivatives are present in skunk secretion.
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[*] posted on 24-12-2011 at 19:18


There is an interesting article here on Butyl Isocyanide regarding the unfathomable odor. Having smelled both butyl isocyanide and methyl mercaptan I think that the butyl isocyanide wins the prize but the methyl mercaptan gets points for staying power. Still, we could go on about stench for hours, does anyone know the most phosphorescent compound by chance?



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[*] posted on 24-12-2011 at 19:52


Quote: Originally posted by BromicAcid  
...does anyone know the most phosphorescent compound by chance?...


Do you mean longest lasting? Or highest brightness under a blacklight? Or both?




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plante1999
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[*] posted on 24-12-2011 at 20:02


I think he wanted to said the brigthess...

We need to said clearly wath we want to said if we want to be understand.... Personnaly I need some work in english grammar.

[Edited on 25-12-2011 by plante1999]




I never asked for this.
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[*] posted on 25-12-2011 at 08:55


I wasn't being specific because the segue was meant only to put the topic back on track since there is already a whole thread devoted to the worst of stinks. Phosphorescence just seemed something that is able to be quantified where someone may have known some 'winning' compounds off the top of their heads.



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Alastair
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[*] posted on 26-12-2011 at 00:15


Bronopol
An effective antimicrobial, whose effective use-concentration which can be as low as 0.0025%.

I think its pretty badass, but not incredibly.

200px-Bronopol_skeletal.svg.png - 4kB
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neptunium
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[*] posted on 29-12-2011 at 08:12


Technetium is a fascinating element to me ....with 43 protons its the lowest atomic number with no stable isotope...Tc99 has the longest half life of 4.2e6 y.....baffling!
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neptunium
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[*] posted on 29-12-2011 at 08:15


1,5 pentane diamine can be smell at very low concentration if i am not mistaken..cadaverine is its common name for a reason
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[*] posted on 29-12-2011 at 08:53


Don't forget its equally malodourous cousin putrescine (butanediamine) - sometimes noticed at the very moment it's least expected --- or wanted? :(


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