| | Identification | More |  | [Name] 
 ALUMINUM SELENIDE
 |  | [CAS] 
 1302-82-5
 |  | [Synonyms] 
 ALUMINUM SELENIDE
 aluminium selenide
 Aluminiumselenide,metalsbasis
 Aluminumselenide,min.95%(99.5%-Al)
 ALUMINUM SELENIDE  (99.5%-AL)
 Aluminum selenide, 99% (metals basis)
 |  | [EINECS(EC#)] 
 215-110-6
 |  | [Molecular Formula] 
 Al2Se3
 |  | [MDL Number] 
 MFCD00014158
 |  | [Molecular Weight] 
 290.84
 |  | [MOL File] 
 1302-82-5.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 960°C
 |  | [density ] 
 3,437 g/cm3
 |  | [solubility ] 
 reacts with H2O
 |  | [form ] 
 Pieces
 |  | [color ] 
 Pale brown
 |  | [Specific Gravity] 
 3.437
 |  | [Water Solubility ] 
 Decomposes to Al{2}0{3} and SeO{2} in water
 |  | [Crystal Structure] 
 Hexagonal,  Wurtzite (Zincite) Structure - Space Group P 63mc
 |  | [Sensitive ] 
 Moisture Sensitive
 |  | [Solubility Product Constant (Ksp)] 
 pKsp: 24.4
 |  | [Exposure limits] 
 ACGIH: TWA 0.2 mg/m3
 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
 |  | [CAS DataBase Reference] 
 1302-82-5(CAS DataBase Reference)
 |  | [EPA Substance Registry System] 
 Aluminum selenide (Al2Se3) (1302-82-5)
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 6.5mm and down black pieces or yellowish to light brown powder(s); unstable in air; formed by reaction of stoichiometric amounts of Al and Se at 1000°C; used to prepare H2Se for semiconductor work; a=0.389nm, c=0.630nm [STR93] [MER06] [CIC73]
 |  | [Uses] 
 In preparation of hydrogen selenide; in semiconductor research.
 | 
 | Safety Data | Back Directory |  | [Risk Statements ] 
 R23/25:Toxic by inhalation and if swallowed .
 R33:Danger of cumulative effects.
 R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
 |  | [Safety Statements ] 
 S20/21:When using, do not eat, drink or smoke .
 S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
 S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
 |  | [RIDADR ] 
 3283
 |  | [TSCA ] 
 Yes
 |  | [HazardClass ] 
 6.1
 |  | [PackingGroup ] 
 II
 | 
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