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Sodium Azide


Sodium Azide Crystal NaN3

This is used as  a preservative or biocide in biosciences to stop microbiological activity.

In various buffer and storage solutions. Commonly used as a 0.01% v/v in solution

It is a constituent of 1xPBS, 1x TBS and other cell biology buffer solutions, having a bacteriostatic properties, by inhibiting  Cytochrome C pathways in bacteria.

Molar mass: 65.0099 g/mol
Formula: NaN3
Melting point: 275 °C
Density: 1.85 g/cm³
Soluble in: Water

Also used in the car industry as a gas forming component in air bags!


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