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

12574 Selenous acid, 97%

Número CAS
7783-00-8
Nombre Alternativo
Selenious acid

Tamaño Precio ($) Cantidad Disponibilidad
5g 11,00
50g 50,10
250g 199,00
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Selenous acid, 97%

MDL
MFCD00011331
EINECS
231-974-7

Propiedades químicas

Fórmula
H2SeO3
Peso molecular
128.97
Formulario
-4 Mesh
Punto de fusión
70° dec.
Sensibilidad
Hygroscopic
Solubilidad
Freely soluble in water, alcohol. Insoluble in ammoniaSoluble in water and ethanol.

Aplicaciones

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.

Notas

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

Referencias documentales

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.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (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.

Indicaciones de precaución: 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.

Otras referencias

Merck
14,8430
Clase de peligro
6.1
Grupo de embalaje
II
Código de tarifa arancelaria unificado
2811.19
TSCA
Yes

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