223530

Carbonato di sodio

powder, ≥99.5%, ACS reagent

• Sinonimo/i: Cenere di soda, Sale disodico dell’acido carbonico, Soda calcinata
• Formula condensata: Na₂CO₃
• Numero CAS: 497-19-8
• Peso molecolare: 105.99
• Beilstein: 4154566
• Numero CE: 207-838-8
• Numero MDL: MFCD00003494
• Codice UNSPSC: 12352302
• ID PubChem: 24853390
• NACRES: NA.21

Proprietà

• Grado: ACS reagent
• agenzia: suitable for EPA 300; suitable for SM 2310; suitable for SM 2320; suitable for SM 4500 - NH3
• Saggio: ≥99.5%
• Forma fisica: powder
• Impurezze: ≤0.005% silica; ≤0.01% insolubles
• Perdita: ≤1.0% loss on heating
• pH: 12 (25 °C, 106 g/L)
• Punto di fusione: 851 °C (lit.)
• Anioni in tracce: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%; sulfur compounds (as SO₄^2-): ≤0.003%
• Cationi in tracce: Ca: ≤0.03%; Fe: ≤5 ppm; K: ≤0.005%; Mg: ≤0.005%; heavy metals: ≤5 ppm (by ICP-OES)
• Stringa SMILE: O=C(O[Na])O[Na]
• InChI: 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2; CDBYLPFSWZWCQE-UHFFFAOYSA-L

Descrizione

Descrizione generale

Sodium carbonate (soda ash) is an inorganic chemical compound. It is used in the synthesis of chemicals, detergent formulations, flue gas desulfurization, and paper and pulp production.

Applicazioni

Sodium carbonate can be used:

• As a catalyst in the aldol condensation of aldehydes with ketones in the synthesis of chalcone and azachalcone.
• As a pH stabilizer agent in the synthesis of FeO-NPs (iron oxide nanoparticles) in the presence of cymbopogon citratus as a reducing agent.
• As a base in the Pd-catalyzed Suzuki coupling reactions.
• As a base in the transition metal free Suzuki coupling reaction of aryl halides and arylboronic acids to form biaryls using water as a solvent and TBAB (tetrabutylammonium bromide) as a phase-transfer catalyst.

Azioni biochim/fisiol

Componente tampone, può essere usato per rimuovere le proteine di membrana periferiche.

Altre note

Go to Redi-Dri^™ Product Listing 791768

Note legali

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H319
• Consigli di prudenza: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Classi di pericolo: Eye Irrit. 2
• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable