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Oxygen Combustion Flask

Posted: Wed Mar 07, 2018 8:29 pm
by eces
Hello all,
I was burning sulphur in an oxygen combustion flask and the stopper was stuck in the neck of it. How can I remove it without breaking it? Thanks in advance.

Re: Oxygen Combustion Flask

Posted: Thu Mar 29, 2018 2:59 am
by dap
Hello. Try to knock a bit.

Re: Oxygen Combustion Flask

Posted: Fri Mar 30, 2018 12:25 am
by tom jupille
Another possibility is to use a heat gun on "low" (or, even better, a hair dryer) to *gently* warm the neck of the flask. That may expand it enough to let you pull the stopper.