Selenium(IV) oxide, 99.4% (metals basis)

Description

CAS: 7446-08-4 | O2Se | 110.97 g/mol

It is used in the manufacture of other selenium compounds. Selenium dioxide is an oxidizing agent mostly used in the allylic oxidation of alkenes to produce allylic alcohols. It is used in creating colorless glass and toner in photographic developing.

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: 7446-08-4
• Molecular Formula: O2Se
• Molecular Weight (g/mol): 110.97
• MDL Number: MFCD00003562
• InChI Key: JPJALAQPGMAKDF-UHFFFAOYSA-N
• Synonym: selenium oxide, selenium iv oxide, oxoselane oxide, selenious anhydride, selenium oxide seo2, seleniumdioxide, dimer, selenous acid anhydride, selenium iv dioxide 1:2, selenium oxide se2o4
• PubChem CID: 24007
• SMILES: O=[Se]=O

• Melting Point: 340°C to 350° (sublimation)
• Color: White
• Physical Form: Powder
• Quantity: 100 g
• Assay Percent Range: 99.4% (Metals Basis)
• Solubility Information: Partially soluble in water,methanol,ethanol,and acetone. Soluble in concentrated sulfuric acid.
• IUPAC Name: selenium dioxide
• Formula Weight: 110.96
• Odor: Odorless
• Density: 3.95 g/cm³ at 20°C
• Chemical Name or Material: Selenium(IV) oxide

Safety and Handling

Hazard Category	H301-H310+H330-H314-H341-H373
Hazard Statement	When using do not eat, drink or smoke. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and/or its container must be disposed of as hazardous waste. Avoid release to the environment.
Precautionary Statement	P201-P202-P261-P262-P264b-P270-P280-P285-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P308+P313-P310-P330-P363-P501c
DOTInformation	DOT Class: 6.1, Packaging Group: II
EINECSNumber	231-194-7
RTECSNumber	VS8575000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only