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Arsenic oxide CAS 1327-53-3 arsenic cation oxygen anion dioxodiarsoxane 

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Place of Origin: Shandong, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: According to the request of...
Brand Name: MOSINTER
Purity: 99%
Molecular weight: 197.84
Density: 3,738 g/cm3
Flashing point: 465°C subl.
Soluble: 37 g/L (20 ºC)
Production Capacity: 10 Ton/Year
Delivery Date: within 7 days
CAS No.: 1327-53-3
Molecular formula: As2O3
Boiling point: 465°C
Melting Point: 312.3 °C
Solubility: 37 g/L (20°C)
Storage condition: Poison room

Arsenic trioxide is the inorganic compound with the formula As2O3. Many applications are controversial given the high toxicity of arsenic compounds.

Arsenic(III) oxide (CAS: 1327-53-3)




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Arsenic trioxide is the inorganic compound with the formula As2O3. This commercially important oxide of arsenic is the main precursor to other arsenic compounds, including organoarsenic compounds. Approximately 50,000 tonnes are produced annually. Many applications are controversial given the high toxicity of arsenic compounds.


Large scale applications include its use as a precursor to forestry products, in colorless glass production, and in electronics. Being the main compound of arsenic, the trioxide is the precursor to elemental arsenic, arsenic alloys, and arsenide semiconductors. Organoarsenic compounds, e.g. feed additives (Roxarsone) and pharmaceuticals (Neosalvarsan), are derived from arsenic trioxide. Bulk arsenic-based compounds sodium arsenite and sodium cacodylate are derived from the trioxide.

A variety of applications exploit arsenic's toxicity, including the use of the oxide as a wood preservative. Copper arsenates, which are derived from arsenic trioxide, are used on a large scale as a wood preservative in the US and Malaysia, but such materials are banned in many parts of the world. This practice remains controversial. In combination with copper(II) acetatearsenic trioxide gives the vibrant pigment known as paris green used in paints and as a rodenticide. This application has been discontinued.

Medical applications

Despite the well known toxicity of arsenic, arsenic trioxide has long been of biomedical interest, dating to traditional Chinese medicine, where it is known as Pi Shuang and is still used to treat cancer and other conditions, and to homeopathy, where it is called arsenicum album. Some discredited patent medicines, e.g., Fowler's solution, contained derivatives of arsenic oxide.

Arsenic trioxide under the trade name Trisenox (manufacturer: Cephalon) is a chemotheraputic agent of idiopathic function used to treat leukemia that is unresponsive to "first line" agents. It is suspected that arsenic trioxide induces cancer cells to undergo apoptosis. Due to the toxic nature of arsenic, this drug carries significant risks. Use as a cytostatic in the treatment of refractory promyelocytic (M3) subtype of acute myeloid leukemia. The combination therapy of arsenic trioxide and all-trans retinoic acid (ATRA) has been approved by the U.S. Food and Drug Administration (FDA) for treatment of certain leukemias. University of Hong Kong developed a liquid form of arsenic trioxide that can be administered orally. 

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