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Fresh cassava roots contain a poisonous substance called hydrocyanic acid.
Under the proper conditions carbon unites with nitrogen and hydrogen to form the acid HCN, called hydrocyanic acid.
It was a medicine called the hydrocyanic or prussic acid.
The following are empirical laws still waiting to be resolved into the simpler laws from which they are derived: the local laws of the flux and reflux of the tides in different places; the succession of certain kinds of weather to certain appearances of sky; the apparent exceptions to the almost universal truth that bodies expand by increase of temperature; the law that breeds, both animal and vegetable, are improved by crossing; that gases have a strong tendency to permeate animal membranes; that substances containing a very high proportion of nitrogen (such as hydrocyanic acid and morphia) are powerful poisons; that when different metals are fused together the alloy is harder than the various elements; that the number of atoms of acid required to neutralize one atom of any base is equal to the number of atoms of oxygen in the base; that the solubility of substances in one another depends, (171) at least in some degree, on the similarity of their elements.
Webelements periodic table says that it is 250 billion times more toxic than hydrocyanic acid.
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