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Arsenic Oxide

Formula: As2O3
Alternate Names: Arsenious oxide, Arsenic trioxide

Oxide Weight198.00
Formula Weight198.00
If this formula is not unified correctly please contact us.

A white poisonous powder derived from the roasting of arsenopyrite (mispickel). It is available in dense large crystal form and a glassy form (made by heating under pressure).

The material can be used as a reagent in glass batches. Lumps thrown into the tank sink, vaporize, and rise sweeping away fine bubbles.

Because of its oxidizing effect, it can be used as a fining agent to clarify iron containing glass. It will also fade the color of manganese and stabilize other colors (i.e. light green). In pot glasses large quantities are used to reduce yellow coloration. Arsenic oxide is also used in specialized enamels (i.e. jewelry).

A major problem with the material is toxicity due to its vaporization on melting. This limits its use to tightly controlled environments.


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Arsenic Oxide" descrip="" searchkey="Arsenious oxide, Arsenic trioxide" loi="0.00" casnumber="28380-38-3"> <oxides> <oxide symbol="As2O3" name="Arsenic Oxide" status="" percent="100.000" tolerance=""/> </oxides> </material>

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