Response to Rodinal

Hello David. If you want the ultimate in storage for the opened Rodinal (or any other liquid chemical), purchase a small tank of nitrogen and purge the air space above the liquid with this gas. Practice with a bottle of water to get the hang of it and wear safety equipement appropriate for the chemicals. As to the Rodinal, I've used opened bottle more than 3 years old with great results. Enjoy, Bill

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