CAS Number: 1327-53-3. A white or transparent solid in the form of glassy, shapeless lumps, or a crystalline powder that resembles sugar. It has no odor or taste. It is produced from by-products of copper smeltin. It is then used in the manufactore of other arsenic compounds which are used as wood preservatives, insecticides and herbicides. It is also used in metallurgical process and in the manufacture of glass and ceramics. Chemical formula = As2O3. Molecular weight = 197.84 g/mol.
a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide and weed killer
Arsenic Trioxide, (chemical formula: As ) is a compound in which two atoms of arsenic are combined with three atoms of oxygen. Pure arsenic trioxide is a white powder. Arsenic Trioxide is rarely found in nature, and is usually formed in industrial processes, such as the smelting of metal ores.
The rock mined in Yellowknife and some other gold deposits in the NWT is rich in arsenopyrite, a mineral that has a high arsenic content. The ore in this area was roasted to release the gold. When it was roasted, arsenic was also released as a gas. The gas cooled and became arsenic trioxide dust.
Arsenic trioxide is the most important commercial compound of arsenic, and the main starting material for arsenic chemistry.
This page provides supplementary chemical data on arsenic trioxide.