Arsenic(III) selenide, 99.999% (metals basis)

Description

For vacuum deposition | CAS: 1303-36-2 | As2Se3 | 386.76 g/mol

Arsenicselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 μm.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 1303-36-2
• Molecular Formula: As2Se3
• Molecular Weight (g/mol): 386.76
• MDL Number: MFCD00014166
• InChI Key: WBFMCDAQUDITAS-UHFFFAOYSA-N
• Synonym: arsenic triselenide, diarsenic triselenide, arsenic selenide, arsenous selenide, arsenic sesquiselenide, unii-xws0w0gb8g, diarsenic triselenide asse3, arsenic iii selenide, xws0w0gb8g
• PubChem CID: 14772
• IUPAC Name: [(selanylidenearsanyl)selanyl]arsaneselone
• SMILES: [Se]=[As][Se][As]=[Se]

• Melting Point: 260°C
• Physical Form: Fused Pieces
• Quantity: 25 g
• UN Number: UN3077
• Merck Index: 14,805
• Solubility Information: Insoluble in water and soluble in nitric acid.
• Formula Weight: 386.72
• Percent Purity: 99.999%
• Odor: Odorless
• Density: 4.75 g/mL
• Assay: (metals basis)
• Chemical Name or Material: Arsenic(III) selenide

Safety and Handling

Hazard Category	H301+H331-H350-H373
Hazard Statement	GHS H Statement H330 Fatal if inhaled.
Precautionary Statement	P201-P202-P260-P264b-P270-P271-P281-P301+P310-P304+P340-P308+P313-P311-P330-P501c
DOTInformation	Transport Hazard Class: 9; Packing Group: III; Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S.
EINECSNumber	215-119-5
RTECSNumber	CG2285000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only