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Your current location :Home > Aluminum Selenide - Al2Se3

Aluminum Selenide - Al2Se3

Aluminum Selenide Granule - Al2Se3

Purity - 99.99%,99.999%

Diamension - Granule 1-10mm

Package - Sealed with Vacume

Application -

About Aluminium Selenide (Al2Se3) Performance

aluminium sulfide is dangersAluminium selenide is the inorganic compound with the formula Al2Se3.
It is a solid prepared by igniting a mixture of the elements at 1,000 °C (1,830 °F):

2 Al + 3 Se → Al2Se3
The pure compound is white, but typical samples are coloured.Samples of aluminium selenide Aluminium Selenide Al2Se3must be protected from moisture, because the compound hydrolyzes readily, giving off highly toxic hydrogen selenide gas:

Al2Se3 + 3 H2O → Al2O3 + 3 H2Se
Uses
Al2Se3 has been used as a precursor to hydrogen selenide, which is released when the solid is treated with acids.

Safety
Aluminium selenide should be stored and handled away from moisture and air.

Base infomation

Other names:Aluminium(III) selenide
CAS Number:1302-82-5
ChemSpider:144477 Yes
EC Number:215-110-6

PubChem:164804
Chemical formula:Al2Se3
Molar mass:290.84 g/mol
Appearance:yellow to brown powder
Odor:odorless

Density:3.437 g/cm3l
Melting point:947 °C (1,737 °F; 1,220 K)
Solubility in water:decomposes
Structure
Crystal structure:Monoclinic, mS20, Space group Cc, No. 9
Thermochemistry
Std molar entropy (So298):154.8 J/mol K
Std enthalpy of formation (ΔfHo298):-566.9 kJ/mo

 

 

 

 

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