Sodium azide

CAS Number26628-22-8
Molecular FormulaN3Na
Molecular Weight65.011
InChI KeyPXIPVTKHYLBLMZ-UHFFFAOYSA-N
LogP0.16
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:

HPLC Determination of Sodium Azide on Newcrom B Column

March 24, 2020


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Condition
Column Newcrom B, 4.6×150 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 Column

Newcrom B

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

Select options
Application Analytes:
Azide Ion
Sodium azide
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

Retention of Azide Ion on Obelisc N Column

March 13, 2012

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, 2.1×150 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 Column

Obelisc N

SIELC has developed the Obelisc™ columns, which are mixed-mode and utilize Liquid Separation Cell technology (LiSC™). These cost-effective columns are the first of their kind to be commercially available and can replace multiple HPLC columns, including reversed-phase (RP), AQ-type reversed-phase, polar-embedded group RP columns, normal-phase, cation-exchange, anion-exchange, ion-exclusion, and HILIC (Hydrophilic Interaction Liquid Chromatography) columns. By controlling just three orthogonal method parameters - buffer concentration, buffer pH, and organic modifier concentration - users can adjust the column properties with pinpoint precision to separate complex mixtures.

Select options
Application Analytes:
Azide Ion
Hydrazoic acid
Sodium azide
Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.