223530

Natriumcarbonat

powder, ≥99.5%, ACS reagent

• Synonym(e): Calcinierte Soda, Kohlensäure Dinatriumsalz, Waschsoda
• Lineare Formel: Na₂CO₃
• CAS-Nummer: 497-19-8
• Molekulargewicht: 105.99
• Beilstein: 4154566
• EG-Nummer: 207-838-8
• MDL-Nummer: MFCD00003494
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 24853390
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent
• Agentur: suitable for EPA 300; suitable for SM 2310; suitable for SM 2320; suitable for SM 4500 - NH3
• Assay: ≥99.5%
• Form: powder
• Verunreinigungen: ≤0.005% silica; ≤0.01% insolubles
• Verlust: ≤1.0% loss on heating
• pH-Wert: 12 (25 °C, 106 g/L)
• mp (Schmelzpunkt): 851 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%; sulfur compounds (as SO₄^2-): ≤0.003%
• Kationenspuren: Ca: ≤0.03%; Fe: ≤5 ppm; K: ≤0.005%; Mg: ≤0.005%; heavy metals: ≤5 ppm (by ICP-OES)
• SMILES String: O=C(O[Na])O[Na]
• InChI: 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• InChIKey: CDBYLPFSWZWCQE-UHFFFAOYSA-L

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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.

Biochem./physiol. Wirkung

Pufferbestandteil, kann zur Entfernung peripherer Membranproteine eingesetzt werden.

Sonstige Hinweise

Go to Redi-Dri^™ Product Listing 791768

Rechtliche Hinweise

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

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H319
• P-Sätze: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Gefahreneinstufungen: Eye Irrit. 2
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable