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12068-69-8

Name BISMUTH SELENIDE
CAS 12068-69-8
EINECS(EC#) 235-104-7
Molecular Formula Bi2Se3
MDL Number MFCD00014200
Molecular Weight 654.84
MOL File 12068-69-8.mol
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Chemical Properties

Melting point  710°C
Boiling point  1007 °C
density  6.82 g/mL at 25 °C(lit.)
solubility  insoluble in H2O
form  Pieces
color  Gray
Specific Gravity 6.82
Water Solubility  Insoluble in water. Decomposes when heated in air. Decomposes in nitric acid and aqua regiaSoluble in strong acids. Insoluble in water and organic solvents.
Crystal Structure Cubic, Halite Structure - Space Group Fm3m
Merck  14,1278
Exposure limits ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
CAS DataBase Reference 12068-69-8(CAS DataBase Reference)
EPA Substance Registry System Bismuth selenide (Bi2Se3) (12068-69-8)

Safety Data

Hazard Codes  T,N
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) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 3283 6.1/PG 3
WGK Germany  3
TSCA  Yes
HazardClass  6.1

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