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:
Molecular Weight:
105.99
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
38020205
UNSPSC Code:
12352302
EC Number:
207-838-8
MDL number:
Beilstein/REAXYS Number:
4154566
Assay:
99.95-100.05% dry basis
Grade:
ACS reagent (primary standard), anhydrous
Form:
powder
Quality Level
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 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.
Sodium carbonate (Soda) is a white salt. It can be synthesized by the electrolysis of the molten sodium hydroxide or sodium chloride.
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:
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.
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
11 - Combustible Solids
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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)