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Topic: storing a hexanes solution of Dibal-H at various temperatures  (Read 1985 times)

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Offline Babcock_Hall

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storing a hexanes solution of Dibal-H at various temperatures
« on: March 30, 2021, 02:24:23 PM »
We just used this today using dry syringe technique and nitrogen.  Ever the optimists, we would like to store it for future use.  We plan to put it into a small desiccator.  Is there any advantage in storing at 4° C?  Is -20 °C better?
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Offline rolnor

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Re: storing a hexanes solution of Dibal-H at various temperatures
« Reply #1 on: March 30, 2021, 03:41:20 PM »
I think I used it as a DCM-solution, this was an old bottle but worked fine so maybe its not so critical. It was stored in freezer.
Does it say anything on the bottle about storage temp?
What I see itshould be 2-8°C
https://www.sigmaaldrich.com/catalog/product/aldrich/214973?lang=en&region=SE
« Last Edit: March 30, 2021, 04:09:19 PM by rolnor »
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Offline phth

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Re: storing a hexanes solution of Dibal-H at various temperatures
« Reply #2 on: April 24, 2021, 05:03:22 PM »
Get the canister version and it will remain good for several years if handled properly!!

https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Aldrich/Bulletin/al_techbull_al136.pdf
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Offline OrganicDan96

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Re: storing a hexanes solution of Dibal-H at various temperatures
« Reply #3 on: April 25, 2021, 12:35:58 PM »
transfer it to a schlenk flask or youngs flask, much better for long-term storage of sensitive reagents. sure seal bottles have a limited number of punctures before they can no longer maintain a gas tight seal
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