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.  

Condition

Column Obelisc N, 2.1x150 mm, 5 µm, 100A
Mobile Phase MeCN
Buffer AmAc
Flow Rate 1.0 ml/min
Detection UV, 250 nm
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Description

Class of Compounds  Base,  Hydrophobic, Ionizable
Analyzing Compounds Azide


Application Analytes:

Azide Ion
Hydrazoic acid
Sodium azide

HPLC Determination of Sodium Azide on Newcrom B Column
HPLC.cloud View on hplc.cloud

Condition

Column Newcrom B, 4.6x150 mm, 3 µm, 100A
Mobile Phase MeCN/H2O - 10/90%
Buffer Acetic Acid -  0.5 %
Flow Rate 1.0 ml/min
Detection UV 260 nm, MS- compatible mobile phase

Description

Class of Compounds Hydrophilic,  Negative
Analyzing Compounds Sodium Azide


Application Analytes:

Azide Ion
Sodium azide

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