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Merck

222321

Sodium carbonate

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

Synonym(s):

Calcined soda, Carbonic acid disodium salt, Soda ash

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About This Item

Linear Formula:
Na2CO3
CAS Number:
497-19-8
Molecular Weight:
105.99
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
24853323
EC Number:
207-838-8
Beilstein/REAXYS Number:
4154566
MDL number:
MFCD00003494
assay:
≥99.5%
grade:
ACS reagent
anhydrous
form:
powder or granules

Product Name

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

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

InChI

1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

SMILES string

O=C(O[Na])O[Na]

grade

ACS reagent
anhydrous

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)

Quality Level

200

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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.

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9563
0000520885
0000520885
0000492867
0000492867

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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)
Efficient and clean aldol condensation catalyzed by sodium carbonate in water.
Zhang Z, et al.
Chemistry Letters (Jpn), 32(10), 966-967 (2003)
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)
Liquid fuel production from sewage sludge by catalytic conversion using sodium carbonate.
Yokoyama S-Y, et al.
Fuel: The Science and Technology of Fuel and Energy, 66(8), 1150-1155 (1987)
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)
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