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223530

Sigma-Aldrich

Sodium carbonate

powder, ≥99.5%, ACS reagent

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Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
Beilstein:
4154566
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Agency

suitable for EPA 300
suitable for SM 2310
suitable for SM 2320
suitable for SM 4500 - NH3

Assay

≥99.5%

form

powder

impurities

≤0.005% silica
≤0.01% insolubles

loss

≤1.0% loss on heating

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.003%

cation traces

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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

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1 of 4

This Item
223484791768900503
Sodium carbonate powder, ≥99.5%, ACS reagent

Sigma-Aldrich

223530

Sodium carbonate

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

Sigma-Aldrich

223484

Sodium carbonate

Essential Grade
Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

791768

Sodium carbonate

-
Sodium carbonate anhydrous, powder or granules, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

900503

Sodium carbonate

-
assay

≥99.5%

assay

99.95-100.05% dry basis

assay

≥99.5%

assay

≥99.5%

form

powder

form

powder

form

powder

form

powder or granules

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

≤0.005% silica, ≤0.01% insolubles

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

General description

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.

Application

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 Actions

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

Legal Information

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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