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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)

Codice CAS
7446-08-4
Sinonimi
Selenium dioxide

Dimensioni Prezzo ($) Quantità Disponibilità
5g 61,90
25g 241,00
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Selenium(IV) oxide, Puratronic®, 99.999% (metals basis)

MDL
MFCD00003562
EINECS
231-194-7

Proprietà chimiche

Formula
SeO2
Peso formula
110.96
Modulo
Powder/Lump
Punto di fusione
340-350° subl.
Solubilità
Soluble in water, benzene, ethanol and methanol. Sprangly soluble in acetone and acetic acid.

Applicazioni

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.

Note

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

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): 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.

Dichiarazioni precauzionali: 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.

Altri riferimenti

Merck
14,8434
Classe di rischio
6.1
Gruppo di imballaggio
II
Codice tariffe armonizzato
2811.29
TSCA
Yes

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