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1303-58-8
Au2O3
790800PD
99.99%
-100-325 Mesh
215-122-1
Characteristic
Gold(III) oxide (Au2O3) is the most stable oxide of gold. It is a red-brown, thermally unstable solid that decomposes at 160 °C. The hydrated form is weakly acidic and dissolves in concentrated alkali to form salts that are believed to contain the Au(OH)4− ion.
Chemical formula:Au2O3
Molar mass:441.93g/mol
Appearance:red-brown solid
Density:11.34 g/cm3 at 20 °C
Melting point:160 °C (320 °F; 433 K) (decomposes)
Solubility in water:insoluble in water, soluble in hydrochloric and nitric acid
Crystal structure:Orthorombic
Application
It is used in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. It acts as strong reducing agent in redox reactions.
Characteristic
Gold(III) oxide (Au2O3) is the most stable oxide of gold. It is a red-brown, thermally unstable solid that decomposes at 160 °C. The hydrated form is weakly acidic and dissolves in concentrated alkali to form salts that are believed to contain the Au(OH)4− ion.
Chemical formula:Au2O3
Molar mass:441.93g/mol
Appearance:red-brown solid
Density:11.34 g/cm3 at 20 °C
Melting point:160 °C (320 °F; 433 K) (decomposes)
Solubility in water:insoluble in water, soluble in hydrochloric and nitric acid
Crystal structure:Orthorombic
Application
It is used in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. It acts as strong reducing agent in redox reactions.
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