223484

Carbonato di sodio

ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis

• 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
• eCl@ss: 38020205
• ID PubChem: 24853386
• NACRES: NA.21
• Saggio: 99.95-100.05% dry basis
• Grado: ACS reagent (primary standard); anhydrous
• Stato: powder

Proprietà

• Grado: ACS reagent (primary standard); anhydrous
• Livello qualitativo: 200
• Saggio: 99.95-100.05% dry basis
• Stato: 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: ≤0.02%; Fe: ≤5 ppm; K: ≤0.005%; Mg: ≤0.004%; 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) is a white salt. It can be synthesized by the electrolysis of the molten sodium hydroxide or sodium chloride.[1]

Sodium carbonate is a water soluble weak base.[2] Its aqueous solution has the ability to uptake carbon dioxide.[3] It can also catalyze the conversion of sewage sludge to liquid fuels.[4]

Applicazioni

Sodium carbonate may be used as a reducing agent for the preparation of graphene sheets with good electrocapacity from graphene oxide dispersion.[5]
It may also be used in procedures for the synthesis of the following:

• Biaryls via palladium-catalyzed cross-coupling reaction of phenylboronicacid with haloarenes.[6]
• Chalcones and azachalcones via aldol condensation of aldehydes with ketones in aqueous medium.[7]
• Enynes via copper-catalyzed allylation of functionalized alkynes.[2]

Sodium carbonate may be used in the following studies:

• Determination of total polyphenolic index of wine products from grape by the Folin-Ciocalteu method.[8]
• To compose the ELISA (Enzyme-Linked Immunosorbent Assay) coating buffer.[9]
• Preparation of the antibody coating buffer for use in IGF-I kinase receptor activation assay (KIRA) assay.[10]

Azioni biochim/fisiol

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

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: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable