157953

Sodium hydrosulfite

technical grade

• Synonyme(s) : Sodium hypodisulfite
• Formule linéaire : NaO₂SSO₂Na
• CAS Number: 7775-14-6
• Poids moléculaire : 174.11
• Numéro CE : 231-890-0
• Numéro MDL: MFCD00011640
• Code UNSPSC : 12352302
• ID de substance PubChem : 329750858
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: technical grade
• Niveau de qualité: 200
• Essai: ≥82.5% (iodometric)
• Forme: powder
• pH: 7-9 (20 °C, 50 g/L)
• Solubilité: water: soluble(lit.)
• Traces de cations: heavy metals: ≤0.002%
• Température de stockage: room temp
• Chaîne SMILES: [Na+].[Na+].[O-]S(=O)S([O-])=O
• InChI: 1S/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
• Clé InChI: JVBXVOWTABLYPX-UHFFFAOYSA-L

Description

Description générale

Sodium hydrosulfite (Sodium dithionite, Sodium hypodisulfite, Na₂S₂O₄) is a white crystalline sodium salt. It decomposes in the presence of atmospheric oxygen to afford sodium hydrogen sulfate. It has been prepared by reducing sodium hydrogen sulfite in sulfurous acid solution with zinc. It is widely used for the decolorization prior to dyeing of cloths in the textile industry.

Application

Sodium hydrosulfite may be employed as a reducing agent for the reduction of graphite oxide in a study.
Sodium hydrosulfite has been used as a fluorescent quenching agent in the encapsulation of polynucleotides via production of asymmetric nanoparticles. It has also be used in the form of buffer for the elution of probe labelled proteins involved in the indentification of cellular targets of covalent kinase inhibitors via mass spectrometry method (MS).

Informations sur la sécurité

• Pictogrammes: GHS02,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H251,H302,H319
• Conseils de prudence: P235 - P264 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313
• Classification des risques: Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1
• Risques supp: EUH031
• Code de la classe de stockage: 4.2 - Pyrophoric and self-heating hazardous materials
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable