reactofurnace
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Iodine storage
Is it possible to store iodine in warm-hot weather (28-30C)? I'm planning to prepare some for a reaction and was wondering if such temperatures can
cause the iodine to sublimate over several days.
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Texium
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Depends on what you’re storing it in. Ampouled? No problem. Vial with Teflon lined lid? Probably fine, as long as it’s not for too long. Put it in
a secondary jar with some sodium hydroxide pellets for extra insurance, if you want to. Anything less than that will very likely leak at those
temperatures.
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Sulaiman
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The vapour pressure of iodine is quite low, (<0.1 Atm. @ 50C)
So the main concern is the chemical compatibility of the cap liner with iodine.
For hours or days even coated paper will survive,
Foam polyethylene liners will survive at least for months.
CAUTION : Hobby Chemist, not Professional or even Amateur
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Lion850
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I have iodine that has been in my shed in a dark glass bottle with plastic cap (not sure what kind of plastic) for a few years, and in summer shed
often gets to over 40C. Put the glass bottle in a zip lined clear plastic bag then you can easily see how much escapes (seems a bit always does!).
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