White arsenic | chemical compound | Britannica (original) (raw)

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properties

• 
  In arsenic: Commercial production and uses
  …principal forms of which are arsenious oxide (As4O6) and arsenic pentoxide (As2O5). Arsenious oxide, commonly known as white arsenic, is obtained as a by-product from the roasting of the ores of copper, lead, and certain other metals as well as by the roasting of arsenopyrite and arsenic sulfide ores. Arsenious…
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use as poison

• In arsenic poisoning
  …of the colourless, tasteless compound arsenious oxide as a poison was common until chemical methods of detection were developed. Definitive diagnosis of arsenic poisoning is based on the finding of arsenic in the urine and in hair or nails.
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