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1303-36-2

Name ARSENIC (III) SELENIDE
CAS 1303-36-2
EINECS(EC#) 215-119-5
Molecular Formula As2Se3
MDL Number MFCD00014166
Molecular Weight 386.72
MOL File 1303-36-2.mol
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Chemical Properties

Melting point  360°C
density  4,75 g/cm3
solubility  insoluble in H2O; soluble in alkaline solutions
form  crystal
color  black
Specific Gravity 4.75
Water Solubility  Soluble in nitric acid. Insoluble in water.
Merck  14,805
Exposure limits ACGIH: TWA 0.01 mg/m3; TWA 0.2 mg/m3
NIOSH: IDLH 5 mg/m3; IDLH 1 mg/m3; TWA 0.2 mg/m3; Ceiling 0.002 mg/m3
CAS DataBase Reference 1303-36-2(CAS DataBase Reference)
EPA Substance Registry System Arsenic selenide (As2Se3) (1303-36-2)

Safety Data

Hazard Codes  T,N
Risk Statements 
R23/25:Toxic by inhalation and if swallowed .
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) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste .
RIDADR  1557
RTECS  CG2285000
TSCA  Yes
HazardClass  6.1
PackingGroup  II

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