Arsenic Trioxide Definition

ärsə-nĭk
noun
A poisonous, white amorphous powder, As2 O3 , used in insecticides, rat poisons, weed killers, pigments, and preservatives for hides and wood.
American Heritage

An industrially important oxide of arsenic that occurs as the mineral claudetite; formula As2O3 (though in liquid, gaseous and some solid forms it has molecules of the form As4O6).

Wiktionary
Synonyms:

Arsenic Trioxide Sentence Examples

  • Glauber showed how to prepare hydrochloric acid, spiritus salis, by heating rock-salt with sulphuric acid, the method in common use to-day; and also nitric acid from saltpetre and arsenic trioxide.

  • Oxidation may be effected by the addition to the glass mixture of a substance which gives up oxygen at a high temperature, such as manganese dioxide or arsenic trioxide.

  • Realgar occurs native in orange prisms of specific gravity 3.5; it is prepared artificially by fusing together arsenic and sulphur, but the resulting products vary somewhat in composition; it is readily fusible and sublimes unchanged, and burns on heating in a current of oxygen, forming arsenic trioxide and sulphur dioxide.

  • See also the FDA notice on 19 March 2001 regarding arsenic trioxide above.

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