Arsenic pentoxide

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Arsenic pentoxide
Other names Arsenic(V) oxide
Arsenic oxide
Arsenic anhydride
Identifiers
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Properties
As2O5
Molar mass 229.8 g/mol
Appearance white hygroscopic powder
Density 4.3 g/cm3, solid
Melting point
Hazards
EU classification {{{value}}}
R-phrases ,
S-phrases S53, S45, S60, S61
Related compounds
Other cations {{{value}}}
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

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Overview

Arsenic pentoxide is an important commercial compound of arsenic. Its usage with respect to arsenic chemistry, as well as its toxicology are similar to arsenic trioxide.

Synthesis

Arsenic pentoxide can be synthesized either by burning elemental arsenic in surplus of oxygen, or by oxidizing arsenic trioxide with oxidizing agents such as ozone, hydrogen peroxide and nitric acid.[citation needed]

Reactions

Arsenic pentoxide decompose to oxygen and As2O3 upon heating. As2O5 dissolves readily in water to form arsenic(V) acid.

Bibliography

Arsenic: Medical and Biological Effects of Environmental Pollutants (1977)

References


External links



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