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204315

Selenium dioxide

99.999% trace metals basis

Synonym(s):

NSC 56753, Selenium oxide

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About This Item

Linear Formula:
SeO2
CAS Number:
7446-08-4
Molecular Weight:
110.96
NACRES:
NA.23
PubChem Substance ID:
24852252
UNSPSC Code:
12352303
EC Number:
231-194-7
MDL number:
MFCD00003562
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vapor pressure

1 mmHg ( 157 °C)

Quality Segment

assay

99.999% trace metals basis

form

solid

composition

SeO₂

reaction suitability

core: selenium

mp

315 °C (subl.) (lit.)

SMILES string

O=[Se]=O

InChI

1S/O2Se/c1-3-2

InChI key

JPJALAQPGMAKDF-UHFFFAOYSA-N

Application

Mild oxidizing reagent for allylic olefins and acetylenes. Conversion of 1,3-diketones to 1,2,3-triones.

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Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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