An archaic or variant term for a chemical compound containing both alkali and arsenic elements, or an old name for arsine derivatives.
Blend of alkali and arsenic (from Greek arsenikon). This term emerged in early chemistry and metallurgy texts but has been superseded by modern systematic nomenclature.
Alkarsin names are relics of the era when alchemists and metallurgists were experimenting with arsenic—one of the most toxic elements—often without realizing how poisonous it was.
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