Arsenic trioxide is used as a precursor to forestry products, in colorless glass production, and in electronics. And it is also used as pigments, and preservatives for hides and wood, in the semiconductor industry to create light emitting diodes.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.