The plan is to date and label these bottles then to keep each chemical separately in its own camping cooler, in a dark, dry, cool place. Possibly the root cellar in this house, which was originally designed for canning. The chemicals should be safe. I have them inside a zip lock bag with the air removed, then in a lab quality plastic bottle with both a plastic pop in lid and a plastic bottle cap. I then take those labelled bottles and place them in camping coolers (Cadmium Bromide cooler, Potassium Bromide cooler, Ammonium Iodide cooler), then I take the sealed coolers and place them in the root cellar.
I think this should work, hope it does!! I will need these chemicals for many years. I know I can do 5 years at least on the Ammonium Iodide, but after that its a bit of a crap shoot. Will save money regardless, but the more I use, the more I save.