Consentement d'utilisation des Cookies

J'accepte Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. En poursuivant votre navigation sur notre site sans changer vos paramètres de navigateur vous nous accordez la permission de conserver des informations sur votre appareil.

7783-00-8 - Selenous acid, 97% - Selenious acid - 12574 - Alfa Aesar

12574 Selenous acid, 97%

Numéro CAS
7783-00-8
Synonymes
Selenious acid

Dimensions Prix ($) Quantité Disponibilité
5g 22,05
50g 51,05
250g 186,88
Ajouter au panier Ajouter au devis en vrac Afficher l'article

Selenous acid, 97%

MDL
MFCD00011331
EINECS
231-974-7

Propriétés chimiques

Formule
H2SeO3
Poids formulaire
128.97
Forme
-4 Mesh
Point de fusion
70° dec.
Sensibilité
Hygroscopic
Solubilité
Freely soluble in water, alcohol. Insoluble in ammoniaSoluble in water and ethanol.

Applications

As an oxidizing agent, as a reagent for alkaloidsSelenous acid is used in steel guns, wherein it changes the color of the steel from silver-grey to blue-grey. It serves as an important component of the Mecke reagent, which is utilized for drug testing. It acts as a source of selenium. It acts as a reagent for alkaloids and an oxidizing agent. Further, it is used in labeling radiopharmaceuticals. It is involved in the organic synthesis for the preparation of glyoxal.

Notes

3.004Hygroscopic. Incompatible with strong reducing agents, organic materials and powdered metals.

Références bibliographiques

Kharkongor, I.; Myrboh, B. One-pot synthesis of α-ketoacetals from aryl methyl ketones in the presence of selenous acid catalyzed by boron triflouride etherate. Tetrahedron Lett. 2015, 56 (29), 4359-4362.

Pathe, G. K.; Ahmed, N. SeO2 in water: a mild and efficient promoter for deprotection of acetyl, methoxymethyl and tetrahydropyranyl ethers and sequel oxidation of methyl/methylene carbons of alpha carbonyl carbon. RSC Adv. 2015, 5 (73), 59114-59119.

Mentions de danger et de prudence du SGH

Mentions de danger (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.

Mentions de prudence: 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.

Autres références

Merck
14,8430
Classe de danger
6.1
Groupe d'emballage
II
Code tarifaire harmonisé
2811.19
TSCA
Yes

Recommandé

  • A12327

    Sodium nitrate, 98+%
  • A15656

    Sodium pentacyanonitrosylferrate(III) dihydrate, 98+%
  • A19560

    Thiamine hydrochloride, 99% (dry wt.), may cont. up to 5% water
  • 14197

    Telluric acid dihydrate, 99+%
  • 81104

    Sodium orthovanadate, 99.9% (metals basis)

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire