Quote Originally Posted by Tom Hoskinson View Post
from the thread link I posted earlier:

Benzotriazole can also decompose slowly in alkaline solution. A neutral organic solvent is best for long shelf life.

Ethyl, Propyl, or Methyl alcohol are best.

Ron Mowrey
Hmmm...all the alcohols I know are quite WET.

I think dry BZT lasts a very long time. I've had no trouble using stuff that is years old.