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223484 Sigma-Aldrich

Sodium carbonate

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

Synonym: Calcined soda, Carbonic acid disodium salt, Soda ash

  • CAS Number 497-19-8

  • Linear Formula Na2CO3

  • Molecular Weight 105.99

  •  Beilstein/REAXYS Number 4154566

  •  EC Number 207-838-8

  •  MDL number MFCD00003494

  •  eCl@ss 38020205

  •  PubChem Substance ID 24853386

  •  NACRES NA.21

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Properties

Related Categories Acids & Bases, Bases, Chemical Synthesis, Essential Chemicals, Inorganic Bases,
Quality Level   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

Description

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 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.

Packaging

500, 6×500 g in poly bottle

Biochem/physiol Actions

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

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
VZ4050000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

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Peer-Reviewed Papers
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References

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