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94046 Sigma-Aldrich

Sodium phosphate dibasic solution

BioUltra, 0.5 M in H2O

Synonym: Disodium hydrogen phosphate solution, di-Sodium hydrogen phosphate solution

  • CAS Number 7558-79-4

  • Linear Formula Na2HPO4

  • Molecular Weight 141.96

  •  MDL number MFCD00003496

  •  eCl@ss 38070211

  •  PubChem Substance ID 57653505

  •  NACRES NA.25



Related Categories Alphabetical, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers, Buffer Solutions,
Quality Level   100
product line   BioUltra
concentration   0.5 M in H2O
impurities   insoluble matter, passes filter test
  ≤0.001% total nitrogen (N)
pH   8.8-9.4 (25 °C, 0.5 M in H2O)
solubility   H2O: 0.5 M at 20 °C, clear, colorless
density   1.064 g/mL at 20 °C
anion traces   chloride (Cl-): ≤10 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤1 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤1 mg/kg
  Bi: ≤1 mg/kg
  Ca: ≤5 mg/kg
  Cd: ≤1 mg/kg
  Co: ≤1 mg/kg
  Cr: ≤1 mg/kg
  Cu: ≤1 mg/kg
  Fe: ≤1 mg/kg
  K: ≤20 mg/kg
  Li: ≤1 mg/kg
  Mg: ≤1 mg/kg
  Mn: ≤1 mg/kg
  Mo: ≤1 mg/kg
  Ni: ≤1 mg/kg
  Sr: ≤1 mg/kg
  Zn: ≤1 mg/kg
λ   0.5 M in H2O
UV absorption   λ: 260 nm Amax: 0.019
  λ: 280 nm Amax: 0.016
Featured Industry   Diagnostic Assay Manufacturing
SMILES string   [Na+].[Na+].OP([O-])([O-])=O
InChI   1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2



Sodium phosphate dibasic solution may be used in the preparation of a wide variety of phosphate based biological buffers for use in cell and molecular biology application.

Safety & Documentation

Safety Information

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NONH for all modes of transport
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