Hannah,

Your request is too vague. When it comes to expiring chemicals, there are chemicals that have indefinite shelf life, as you noted, and some with shelf lives of days weeks or months. As the manager of the inventory, it is incumbent on you to determine the expiration standards for each reagent in your inventory.

That said, please inspect your inventory immediately for peroxidizables (ether, tetrahydrofuran, unstabilized anhydrous propanol, etc.), dry picric acid, and non-stabilized monomers. If you encounter any of those, back away. Consider enlisting the aid of an environmental service if your inventory is extensive.

Bueno suerte,

Steve

Sent from my iPhone

On Jul 29, 2016, at 4:46 PM, Hannah Corcoran <bffblue14**At_Symbol_Here**HOTMAIL.COM> wrote: