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7446-08-4 - Selenium(IV) oxide, 99.4% (metals basis) - Selenium dioxide - 12358 - Alfa Aesar

12358 Selenium(IV) oxide, 99.4% (metals basis)

CAS Number
7446-08-4
Synonyms
Selenium dioxide

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

MDL
MFCD00003562
EINECS
231-194-7

Chemical Properties

Formula
O2Se
Formula Weight
110.96
Form
Powder
Melting point
340-350° subl.
Density
3.95
Solubility
Partially soluble in water, methanol, ethanol, and acetone. Soluble in concentrated sulfuric acid.

Applications

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.

Notes

It must be stored away from materials like metals, reducing agents, strong acids, ammonia, hydrogen, and hydrogen sulfide.

Literature References

Wang, Y.; Yang, H.; Xia, Z.; Tong, Z.; Zhou, L. One-pot synthesis of CdSe quantum dots using selenium dioxide as a selenium source in aqueous solution. Bull. Korean Chem. Soc. 2011, 32, 2316-2318.

Lee, E. P.; Song, S. Y.; Lee, D. W.; Ok, K. M. New Bismuth Selenium Oxides: Syntheses, Structures, and Characterizations of Centrosymmetric Bi2(SeO3)2(SeO4) and Bi2(TeO3)2(SeO4) and Noncentrosymmetric Bi(SeO3)(HSeO3). Bull. Korean Chem. Soc. 2013, 52 (7), 4097-4103.

GHS Hazard and Precautionary Statements

Hazard Statements: H301-H331-H373-H400-H410

Toxic if swallowed. Toxic if inhaled. May cause damage to organs through prolonged or repeated exposure. Very toxic to aquatic life. Very toxic to aquatic life with long lasting effects.

Precautionary Statements: P260-P261-P273-P301+P310-P304+P340-P311-P321-P405-P403+P233-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid release to the environment. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,8434
Hazard Class
6.1
Packing Group
II
Harmonized Tariff Code
2811.29
TSCA
Yes
RTECS
VS8575000

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