157953

Sodium hydrosulfite

technical grade

• Sinonimo/i: Sodium hypodisulfite
• Formula condensata: NaO₂SSO₂Na
• Numero CAS: 7775-14-6
• Peso molecolare: 174.11
• Numero CE: 231-890-0
• Numero MDL: MFCD00011640
• Codice UNSPSC: 12352302
• ID PubChem: 329750858
• NACRES: NA.21

Proprietà

• Grado: technical grade
• Livello qualitativo: 200
• Saggio: ≥82.5% (iodometric)
• Stato: powder
• pH: 7-9 (20 °C, 50 g/L)
• Solubilità: water: soluble(lit.)
• Cationi in tracce: heavy metals: ≤0.002%
• Temperatura di conservazione: room temp
• Stringa SMILE: [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; JVBXVOWTABLYPX-UHFFFAOYSA-L

Descrizione

Descrizione generale

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.

Applicazioni

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).

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H251,H302,H319
• Consigli di prudenza: P235 - P264 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313
• Classi di pericolo: Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1
• Rischi supp: EUH031
• Codice della classe di stoccaggio: 4.2 - Pyrophoric and self-heating hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable