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71345 Sigma

Sodium carbonate

BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)

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 24886173

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Properties

Related Categories Alphabetical, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers
grade   anhydrous
product line   BioUltra
assay   ≥99.5% (calc. on dry substance, T)
form   powder or crystals
impurities   insoluble matter, passes filter test
  ≤0.001% total nitrogen (N)
  ≤0.005% total sulfur (as SO4)
loss   ≤1.0% loss on drying, 200 °C
pH   ~12.0 (25 °C, 1 M in H2O)
mp   851 °C(lit.)
solubility   H2O: soluble1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  phosphate, silicate (as SiO2): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤200 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: ≤50 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   1 M in H2O
UV absorption   λ: 260 nm Amax: 0.01
  λ: 280 nm Amax: 0.01

Description

Biochem/physiol Actions

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

Other Notes

Salt component in the fractionation of multivalent nucleotides by inorganic salt co-precipitation

Price and Availability


Laboratory Gloves

Interactive Buffer Table
Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
VZ4050000
Protocols & Articles

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BioUltra Biological Buffers

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Peer-Reviewed Papers
15

References

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