what is the Most Dangerous Chemical or poison in the world?
I would say Sodium Cyanide (NaCN).
Plenty of things that are much more poisonous than cyanides.
But in general, this is a very poorly defined question. Litvinienko was killed using about 10 μg of polonium. Polonium is not a compound, it is an element. Botulinum toxin is lethal in concentrations 1000 times smaller. It is a protein, so it can be qualified as a compound, but its exact composition can depend on the bacterial strain used to produce it. Neither plutonium nor botulinum toxin is dangerous if correctly handled.
Dioxygen difluoride might be a good candidate in terms of violent reactivity with virtually anything. And that's at less than -150oC
Dihydrogen oxide is particularly deadly. It's all around us. We breathe it in with every breath, but if we breathe in too much, we die. We need to consume a certain amount of dihydrogen oxide each day to maintain health, but if we go for more than a few days without consuming any, we die. Yet, this chemical is not regulated by any agency in the world.
If you want to see a lot of dead people, one should go ahead and regulate it. Not sure why you promote the opposite.
This one is very, very nasty ...
It also claimed the life of Karen Wetterhahn...
Borek is right...
Dihydrogen oxide can be very dangerous... with improper usage.
The same holds true for "dihydrogen monoxide" (DHMO)...
Is DNA Poison??
You have not limited "dangerous" to "poisonous" in your opening post, now you are shifting the post goals.
I told you it is a very poorly defined question, this answer shows why. It is not that difficult to prove why DNA is so dangerous - after all, it is a necessary compound without which we would not evolve, and we ARE dangerous, aren't we?
can you prove that DNA is a poison??
i am listening.
My reply 'DNA' was somewhat 'tongue in cheek'.
But in the sense that it is a chemical which can lead to drastic transformation of it's environment and requisition other chemistry to achieve that end, it certainly poses a threat to environmental stability.
The emergence of cyanobacteria, the first photosynthesisers, led to dramatic changes in the composition of Earth's atmosphere, which previous had little or no free oxygen, and that led to the near-extinction of oxygen intolerant life forms which had been doing quite well until then.
finally i found it!!
What have you found? Three people each speaking of a completely different chemical they have DEALT with, not the one they KNOW about. So, which one it is, and why do you assume those mentioned earlier in the thread are not more dangerous?
i found the video about (what is the most dangerous chemical).
A lot of people die from H2O
Separate names with a comma.