arsenic trioxide

arsenic trioxide

noun Chemistry.
a white, tasteless, amorphous, slightly water-soluble, poisonous powder, As2O3, used chiefly in the manufacture of pigments and glass and as an insecticide or weed-killer; arsenous acid.
Also called arsenic.
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Arsenic trioxide is always a great word to know.
So is glacial. Does it mean:
a neutral crystalline substance, C2H7NO3S, obtained from bile
of, pertaining to, or tending to develop into icelike crystals: glacial phosphoric acid
Collins
World English Dictionary
arsenic trioxide
 
n
Also called: arsenic a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As2O3

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