223484

Carbonate de sodium

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

• Synonyme(s) : Acide carbonique, sel disodique, Carbonate de soude, Soude calcinée
• Formule linéaire : Na₂CO₃
• Numéro CAS: 497-19-8
• Poids moléculaire : 105.99
• Beilstein: 4154566
• Numéro CE : 207-838-8
• Numéro MDL: MFCD00003494
• Code UNSPSC : 12352302
• eCl@ss : 38020205
• ID de substance PubChem : 24853386
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent (primary standard); anhydrous
• Essai: 99.95-100.05% dry basis
• Forme: powder
• Impuretés: ≤0.005% silica; ≤0.01% insolubles
• Perte: ≤1.0% loss on heating
• pH: 12 (25 °C, 106 g/L)
• Pf: 851 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%; sulfur compounds (as SO₄^2-): ≤0.003%
• Traces de cations: Ca: ≤0.02%; Fe: ≤5 ppm; K: ≤0.005%; Mg: ≤0.004%; heavy metals: ≤5 ppm (by ICP-OES)
• Chaîne SMILES: O=C(O[Na])O[Na]
• InChI: 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• Clé InChI: CDBYLPFSWZWCQE-UHFFFAOYSA-L

Description

Description générale

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]

Application

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]

Actions biochimiques/physiologiques

Constituant de tampon pouvant être utilisé pour l′extraction des protéines membranaires périphériques.

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H319
• Conseils de prudence: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Classification des risques: Eye Irrit. 2
• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable