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223484

Sodium carbonate

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

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
NACRES:
NA.21
PubChem Substance ID:
24853386
eCl@ss:
38020205
UNSPSC Code:
12352302
EC Number:
207-838-8
MDL number:
MFCD00003494
Beilstein/REAXYS Number:
4154566
Assay:
99.95-100.05% dry basis
Grade:
ACS reagent (primary standard), anhydrous
Form:
powder
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Quality Segment

200

grade

ACS reagent (primary standard), anhydrous

assay

99.95-100.05% dry basis

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: ≤0.02%, Fe: ≤5 ppm, K: ≤0.005%, Mg: ≤0.004%, 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

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 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 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.
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.

Biochem/physiol Actions

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

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pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

11 - Combustible Solids

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

223484-500G:4.54817339039E12

jan

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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)
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)
Efficient and clean aldol condensation catalyzed by sodium carbonate in water.
Zhang Z, et al.
Chemistry Letters (Jpn), 32(10), 966-967 (2003)
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