If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
200107
Selenium dioxide
≥99.9% trace metals basis
Synonyme(s) :
NSC 56753, Selenium oxide
About This Item
Produits recommandés
Pression de vapeur
1 mmHg ( 157 °C)
Essai
≥99.9% trace metals basis
Forme
solid
Pertinence de la réaction
reagent type: oxidant
Pf
315 °C (subl.) (lit.)
Chaîne SMILES
O=[Se]=O
InChI
1S/O2Se/c1-3-2
Clé InChI
JPJALAQPGMAKDF-UHFFFAOYSA-N
Vous recherchez des produits similaires ? Visite Guide de comparaison des produits
Application
- An oxidizing agent to introduce carbonyl functional groups at activated carbon.[1]
- A catalyst in the allylic hydroxylation reactions.[1]
- An oxidant in the synthesis of amides by oxidative amidation of aldehydes with amines.[2]
- A catalyst to synthesize di and trioxidized bicyclic cyclopentenones by reacting with Pauson-Khand reaction (PKR) products.[3]
- A catalyst along with iodine (I2) to prepare mono and bis-sulfenylindoles by treating indoles with diaryl disulfides via C-H sulfenylation.[4]
- A catalyst to synthesize alkyl and aryl nitriles from the corresponding aldehydes via the formation of aldoxime.[1]
- A selenium precursor to synthesize FeSe nanostructures via electrochemical deposition method.[5]
It can also be used as a versatile reagent for allylic oxidation and oxidative-elimination reactions.[4]
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
Code de la classe de stockage
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Classe de danger pour l'eau (WGK)
WGK 2
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Faites votre choix parmi les versions les plus récentes :
Certificats d'analyse (COA)
Vous ne trouvez pas la bonne version ?
Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Les clients ont également consulté
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
-
Active Filters
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..
Contacter notre Service technique
