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S.C. Wack
bibliomaster
Posts: 2419
Registered: 7-5-2004
Location: Cornworld, Central USA
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The use of corks was perfectly wise. A cork was included so the ether wouldn't all evaporate from the can during the operation, if the can wasn't
emptied into some fancy ether dispenser. These were quite small cans having no other way to seal them.
The Organikum (generally a good source of different directions) says "It is therefore recommended to store it over potassium hydroxide, which
immediately converts the hydroperoxides produced into insoluble salts and, moreover, is a very suitable drying agent.", but my thinking was this would
be on the surface of the KOH only, and would not occur with peroxide free ether. I guess if something is precipitating regardless (there are other
threads and posters here noting precipitates with KOH) the K is getting into the ether somehow.
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