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
MDL Number: MFCD00003494
PubChem Substance ID: 24886173
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-precipitation1
Product Line: BioUltra
Assay: ≥99.5% (calc. on dry substance, T)
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: 260 nm Amax: 0.01; λ: 280 nm Amax: 0.01