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222321

Sigma-Aldrich

Sodium carbonate

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

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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
anhydrous

Quality Level

Agency

suitable for SM 4500 - NH3

Assay

≥99.5%

form

powder or granules

impurities

≤0.005% silica
≤0.01% insolubles

loss

≤1.0% loss on heating, 285 °C

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
900504900505SX0395
Sodium carbonate ACS reagent, anhydrous, ≥99.5%, powder or granules

Sigma-Aldrich

222321

Sodium carbonate

Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis

Sigma-Aldrich

900504

Sodium carbonate

Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99.5%

Sigma-Aldrich

900505

Sodium carbonate

Sodium carbonate anhydrous, powder, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

SX0395

Sodium carbonate

assay

≥99.5%

assay

99.95-100.05% dry basis

assay

≥99.5%

assay

≥99.5% dry basis

form

powder or granules

form

powder

form

powder

form

powder

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

≤0.005% silica, ≤0.01% insolubles

impurities

-

impurities

≤0.01% Insoluble matter

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

12 (25 °C, 106 g/L)

pH

11.16 (25 °C, 4 g/L in H2O)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

mp

851 °C (lit.)

General description

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.

Application

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.

Biochem/physiol Actions

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Sodium carbonate anhydrous United States Pharmacopeia (USP) Reference Standard

USP

1613757

Sodium carbonate anhydrous

Sodium carbonate puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E500, anhydrous, 99.5-100.5% (calc. to the dried substance)

Sigma-Aldrich

13418

Sodium carbonate

Sodium Carbonate Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1948

Sodium Carbonate Anhydrous

Sodium carbonate anhydrous for analysis EMSURE® ISO

Supelco

1.06392

Sodium carbonate

Sodium carbonate anhydrous, free-flowing, Redi-Dri™, ACS reagent (primary standard), 99.95-100.05% dry basis

Sigma-Aldrich

900504

Sodium carbonate

Sodium carbonate anhydrous, for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Supelco

1.06393

Sodium carbonate

Sodium carbonate anhydrous, granular, Meets ACS Specifications GR ACS

Supelco

SX0400

Sodium carbonate

Absorption of carbon dioxide into aqueous sodium hydroxide and sodium carbonate-bicarbonate solutions.
Hikita H, et al.
Chemical Engineering Journal, 11(2), 131-141 (1976)
Efficient and clean aldol condensation catalyzed by sodium carbonate in water.
Zhang Z, et al.
Chemistry Letters (Jpn), 32(10), 966-967 (2003)
Copper catalyzed regioselective coupling of allylic halides and alkynes promoted by weak inorganic bases.
Bieber LW and da Silva MF
Tetrahedron Letters, 48(40) , 7088-7090 (2007)
The palladium-catalyzed cross-coupling reaction of phenylboronic acid with haloarenes in the presence of bases.
Miyaura N, et al.
Synthetic Communications, 11(7), 513-519 (1981)
A green and efficient method to produce graphene for electrochemical capacitors from graphene oxide using sodium carbonate as a reducing agent.
Jin Y, et al.
Applied Surface Science, 268, 541-546 (2013)

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