Discussion Hydrogen cyanide, can you die in 3 seconds?

[Marco77]

If the dose is high or if the hydrocyanic acid is inhaled in the gas state, death can be instantaneous, due to paralysis of the respiratory center. The fatal dose for humans is five centigrams.

100% success rate?

This beats Nembutal like crazy!!! In terms of effectiveness, agony and speed.

 

[Praestat_Mori]

It will be pretty painful to inhale HCN, that is what makes it so difficult. Now, I wouldn't say it takes just 3 seconds but a deep breath (that if you can do it) is highly likely to be lethal and you will be unconscious quickly.

 

[Marco77]

It will be pretty painful to inhale HCN, that is what makes it so difficult. Now, I wouldn't say it takes just 3 seconds but a deep breath (that if you can do it) is highly likely to be lethal and you will be unconscious quickly.

Why difficult? How to get it?
Reported from another forum:

Clinical signs animal experiments.

Animals usually do not show symptoms before death, which occurs suddenly.