sodium azide

[Steven Cohen]

At 02:46 PM 9/9/96, you wrote:
>Does anyone have a reference(s) for:
>
2) safety issues regarding pH and sodium azide (i.e. at what pH does fuming 
>become a problem, etc.)
>
At acidic pH Sodium azide becomes Azoic Acid. I do not know the pKa, but at
ph 4 it will visibly fume if the concentration is high enough. Azoic acid is
a bad actor. It is a potent cardiac stimulant.

Steve