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8.45008

Selenium dioxide

(sublimed) Msynth™plus

Synonym(s):

Selenium dioxide, Selenious anhydride, Selenium(IV) oxide

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About This Item

Empirical Formula (Hill Notation):
O2Se
CAS Number:
7446-08-4
Molecular Weight:
110.96
UNSPSC Code:
12352303
EC Index Number:
231-194-7
Form:
powder
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vapor pressure

<1 Pa ( 20 °C)

form

powder

potency

68.1 mg/kg LD50, oral (Rat)

reaction suitability

reagent type: oxidant

pH

2 (20 °C, 10 g/L in H2O)

mp

340 °C

solubility

1353 g/L

density

3.95 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/O2Se/c1-3-2

InChI key

JPJALAQPGMAKDF-UHFFFAOYSA-N

Analysis Note

Colour (visual): white
Appearance of substance (visual): powder
Assay (iodometric): ≥ 98.0 %
Te (Tellur) (ICP MS): lot specific result

Legal Information

MSYNTH is a trademark of Merck KGaA, Darmstadt, Germany

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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

WGK

WGK 2

Flash Point (°C)

Not applicable

Flash Point (°F)

Not applicable

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

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