222321

Sodium carbonate

ACS reagent, anhydrous, ≥99.5%, powder or granules

• Synonim(y): Calcined soda, Carbonic acid disodium salt, Soda ash
• Wzór liniowy: Na₂CO₃
• Numer CAS: 497-19-8
• Masa cząsteczkowa: 105.99
• Beilstein: 4154566
• Numer WE: 207-838-8
• Numer MDL: MFCD00003494
• Kod UNSPSC: 12352302
• Identyfikator substancji w PubChem: 24853323
• NACRES: NA.21

Właściwości

• klasa czystości: ACS reagent; anhydrous
• Poziom jakości: 200
• agency: suitable for SM 4500 - NH3
• Próba: ≥99.5%
• Postać: powder or granules
• zanieczyszczenia: ≤0.005% silica; ≤0.01% insolubles
• strata: ≤1.0% loss on heating, 285 °C
• pH: 12 (25 °C, 106 g/L)
• mp: 851 °C (lit.)
• ślady anionów: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤0.001%; sulfur compounds (as SO₄^2-): ≤0.003%
• ślady kationów: Ca: ≤0.03%; Fe: ≤5 ppm; K: ≤0.005%; Mg: ≤0.005%; heavy metals: ≤5 ppm (by ICP-OES)
• ciąg 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
• Klucz InChI: CDBYLPFSWZWCQE-UHFFFAOYSA-L

Opis

Opis ogólny

Sodium carbonate (Soda) is a white salt. It can be synthesized by the electrolysis of the molten sodium hydroxide or sodium chloride.

Sodium carbonate is a water soluble inorganic salt commonly used as a weak base. Its aqueous solution has the ability to uptake carbon dioxide. It can also catalyze the conversion of sewage sludge to liquid fuels.

Zastosowanie

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

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

Sodium carbonate may be used in the following studies:

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

Działania biochem./fizjol.

Buffer component, may be used for the removal of peripheral membrane proteins.

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS07
• Hasło ostrzegawcze: Warning
• Zwroty wskazujące rodzaj zagrożenia: H319
• Zwroty wskazujące środki ostrożności: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Klasyfikacja zagrożeń: Eye Irrit. 2
• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable