Arsenic pentoxide, also known as arsenic(V) oxide, is a chemical compound. Its chemical formula is As2O5. It has arsenic and oxide ions in it. The arsenic is in its +5 oxidation state. More common is arsen in its oxidation state +3 as As2O3 (arsenic trioxide or arsenic(III) oxide). The LD50 for arsenic pentoxide is 8mg/kg for rats. When the substance becomes wet, it turns into arsenic acid, which corrodes metals.
Arsenic pentoxide is a white, odourless solid. It dissolves easily in water to make arsenic acid. It is highly toxic, as are almost all arsenic compounds. It is a powerful oxidizing agent. It reacts with hydrochloric acid to make chlorine. As2O5 breaks down to arsenic trioxide and oxygen when heated to about 300°C.
The arsenic pentoxide drops out as white powder.
Related pages [change]
- "ARSENIC PENTOXIDE". chemicalland21.com. 2012 [last update]. http://www.chemicalland21.com/industrialchem/inorganic/ARSENIC%20PENTOXIDE.htm. Retrieved 6 August 2012.
- "Toxicity of Arsenic Compounds". ncbi.nlm.nih.gov. 2012 [last update]. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1039212/?page=1. Retrieved 6 August 2012.
- "ARSENIC Toxicity". manbir-online.com. 2012 [last update]. http://manbir-online.com/diseases/arsenic.htm. Retrieved 6 August 2012.
- Wiberg, Nils; Arnold Holleman (2007). Lehrbuch der Anorganischen Chemie. Berlin, New York: de Gruyter. p. 845. ISBN 978-3-11-017770-1.
- Wiberg, Nils; Arnold Holleman (2007). Lehrbuch der Anorganischen Chemie. Berlin, New York: de Gruyter. p. 844. ISBN 978-3-11-017770-1.
- "Arsenic pentoxide Manufacturers Suppliers in China CAS No 1303-28-2 | Xilan Chemicals Co Ltd Leading Chemical Manufacturer and Trader". xilanchem.com. 2012 [last update]. http://xilanchem.com/arsenic-pentoxide-manufacturers-suppliers-in-china-cas-no-1303-28-2. Retrieved 6 August 2012.