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7446-08-4 - Selenium(IV) oxide, Puratronic®, 99.999% (metals basis) - Selenium dioxide - 10854 - Alfa Aesar

10854 Selenium(IV) oxide, Puratronic®, 99.999% (metals basis)

CAS-Nummer
7446-08-4
Synonyme
Selenium dioxide

Größe Preis ($) Menge Verfügbarkeit
5g 61,90
25g 241,00
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Selenium(IV) oxide, Puratronic®, 99.999% (metals basis)

MDL
MFCD00003562
EINECS
231-194-7

Chemische Eigenschaften

Formel
SeO2
Molmasse
110.96
Form
Powder/Lump
Schmelzpunkt
340-350° subl.
Löslichkeit
Soluble in water, benzene, ethanol and methanol. Sprangly soluble in acetone and acetic acid.

Anwendungen

In organic reactions, selenium dioxide is often used as an oxidizing reagent employed for carrying out allylic oxidations, Riley oxidation, synthesis of diones, etc. It is used to impart a red color to glass. It finds use as a toner in photographic developing, and an active ingredient in some cold-blueing solutions.

Bemerkungen

It is an acidic oxide, and forms selenous acid on dissolution in water.

Literaturverweise

Rabjohn, N. Selenium Dioxide Oxidation. Organic Reactions 2011, 24 (4), 261-416.

Hamigeran, B.; Trost, B. M.; Pissot-Soldermann, C.; Chen, I.; Schroeder, G. M. An Asymmetric Synthesis of Hamigeran B via a Pd Asymmetric Allylic Alkylation for Enantiodiscrimination. J. Am. Chem. Soc. 2004, 126 (14), 4480.

Brzaszcz, M.; Kloc, K.; Maposah, M.; Mlochowski, J. Selenium(IV) Oxide Catalyzed Oxidation of Aldehydes to Carboxylic Acids with Hydrogen Peroxide. Syn. Commun. 2000, 30 (24), 4425-4434.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): 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.

Sicherheitshinweise: 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.

Weitere Referenzen

Merck
14,8434
Gefahrenklasse
6.1
Verpackungsgruppe
II
Harmonized Tariff Code
2811.29
TSCA
Yes

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