Sodium azide

CAS Number 26628-22-8
Molecular Formula N3Na
Molecular Weight 65.011 g/mol
InChI Key PXIPVTKHYLBLMZ-UHFFFAOYSA-N
LogP 0.16
Synonyms
  • Sodium azide
  • 26628-22-8
  • Sodium azide,
  • aziduro de sodio
  • Azoture de sodium
  • Hydrazoic acid, sodium salt
  • Natriumazid
  • Nemazyd
  • NSC 3072
  • Sodium nitride
  • UN 1687
  • Azide, sodium
  • Caswell No. 744A
  • EINECS 247-852-1
  • EPA Pesticide Chemical Code 107701
  • NCI-C06462
  • RCRA waste number P105
  • Azydek sodu
  • Natriummazide
  • Sodium, azoture de
  • Sodium, azoturo di
  • UNII-968JJ8C9DV
  • 108592-00-3
  • 12136-89-9
  • 157302-08-4
  • 20828-18-6
  • 503002-54-8
  • 575502-02-2

Applications:


Retention of Azide Ion on Obelisc N Column

Sodium azide is a salt of weak hydrazoic acid with pKa 4.5-4.7.
Sodium azide is very toxic. It is typically used as a stabilizer for aqueous solution to suppress bacteria grows.
Chromatography separation is based on weak ionic interaction of the partially ionized hydrazoic acid with positively charged column surface. Additional polar interaction is a result of high acetonitrile concentration in the mobile phase.



Application Analytes:

Azide Ion
Hydrazoic acid
Sodium azide