243973

Sodium bisulfite

ACS reagent

• Sinónimos: Sodium hydrogensulfite
• Fórmula empírica (notación de Hill): NaHSO₃
• Número de CAS: 7631-90-5
• Peso molecular: 104.06
• Código UNSPSC: 12352302
• ID de la sustancia en PubChem: 24854644
• NACRES: NA.21

Propiedades

• grado: ACS reagent
• Nivel de calidad: 200
• formulario: powder or crystals
• concentración: ≥58.5% SO₂
• impurezas: ≤0.005% insolubles
• pH: 4.3 (10 g/L)
• trazas de anión: chloride (Cl^-): ≤0.02%
• trazas de catión: Fe: ≤0.002%; heavy metals (as Pb): ≤0.001%
• cadena SMILES: [Na+].OS([O-])=O
• InChI: 1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2
• Clave InChI: DWAQJAXMDSEUJJ-UHFFFAOYSA-L

Descripción

Descripción general

Sodium bisulfite is a widely used industrial chemical as a reducing agent, catalyst, and preservative in pharmaceuticals and foods due to its antioxidative and antibacterial effects.

The aqueous solutions of sodium bisulfite are acidic in nature. Degradation of sodium bisulfite with acid forms sulfur dioxide gas.

Aplicación

Sodium bisulfite (NaHSO₃) has been used as a reagent to compose the immunoprecipitation (IP) buffer to chemically modify DNA and to synthesize arsenolipids (AsL).
It can also be used as a reagent during the synthesis of 5,6-dihydrouracil-6-sulfonate.

Sodium bisulfite can be used as:

• A reagent to synthesize aldehyde-bisulfite adducts from aromatic and aliphatic aldehydes.
• A catalyst in the solvent-free etherification of aromatic/aliphatic alcohols to synthesize symmetric and unsymmetric ethers via intermolecular dehydration.
• An additive in the copper-catalyzed homocoupling of ketoxime carboxylates to synthesize symmetrical pyrroles.

Información de seguridad

• Pictogramas: GHS07
• Palabra de señalización: Warning
• Frases de peligro: H302
• Consejos de prudencia: P264 - P270 - P301 + P312 - P501
• Clasificaciones de peligro: Acute Tox. 4 Oral
• Riesgos supl.: EUH031
• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable