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31432 Sigma-Aldrich

Sodium carbonate

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.8% (calc. to the dried substance)

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

  • CAS Number 497-19-8

  • Linear Formula Na2CO3

  • Molecular Weight 105.99

  •  Beilstein Registry Number 4154566

  •  EC Number 207-838-8

  •  PubChem Substance ID 24858951

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Essential Chemicals, Puriss p.a. ACS,
grade   ACS reagent, reag. ISO, reag. Ph. Eur.
  puriss. p.a.
assay   ≥99.8% (calc. to the dried substance)
impurities   residual solvents, complies
  ≤0.001% total nitrogen (N)
  ≤0.003% total S (as SO4)
  ≤0.01% in water insoluble matters
loss   ≤0.5% loss on drying, 300 °C
mp   851 °C (lit.)
anion traces   chloride (Cl-): ≤10 mg/kg
  phosphate (PO43-): ≤10 mg/kg
  silicate (as SiO2): ≤20 mg/kg
cation traces   Ag: ≤5 mg/kg
  Al: ≤10 mg/kg
  As: ≤0.5 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤50 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤20 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤20 mg/kg
  Zn: ≤5 mg/kg
  heavy metals: ≤5 ppm (by ICP-OES)

Description

Biochem/physiol Actions

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

Application

Sodium carbonate may be used for the determination of total polyphenolic index of wine products from grape by the Folin-Ciocalteu method. It has been used to compose the ELISA (Enzyme-Linked Immunosorbent Assay) coating buffer. It may be used to prepare the antibody coating buffer for use in IGF-I kinase receptor activation assay (KIRA) assay.

General description

Sodium carbonate (Soda) is a white salt. It can be synthesized by the electrolysis of molten sodium hydroxide or sodium chloride.

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
VZ4050000
Protocols & Articles
Peer-Reviewed Papers
15

References

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