KCN có được bán sẵn, tuy nhiên trước khi mua hoặc trước khi điều chế nó thì tham khảo cái này:
Trích:
Cyanide blocks one of the enzymes involved in the electron transfer chain, this ceases cellular respiration thus you essentially die from suffocation, very painful. You would pass out fairly rapidly then die as your heart muscle has no energy to beat.
You know that inhalation of hydrogen cyanide, or ingestion
of cyanides causes death. HCN, hydrogen cyanide is a
highly volatile liquid and that hasten its lethal effect.
The reason of this is the inhibition of the oxidative
processes of the cells. Rapid death may be caused
by swallowing as little as 300 milligrams of the cyanides
or inhaling 100 milligrams of HCN.
The poisoning results from the following: the cyanide
ion [ (CN) minus} is quite small and quickly makes its
way into the body cells, where it binds to the iron in
the heme of one of the cytochromes. As an immediate
result the respiratory chain shuts down by inhibiting
electron transfer. Cell respiratory process then ceases
and the period from ingestion to death is only a few
minutes away.
Because the poison acts so fast, recovery from
sublethal doses will depend from the promptness
of antidotes administration.
Since cyanides are used in many industrial process
always there are possibilities of fatalities from
occupational poisoning. An emergency treatment
includes amyl nitrite, sodium nitrite or a 25%
solution of sodium thiosulfate.
One must be very careful then!
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