How to open a ground glass bottle stopper
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When a ground-glass bottle is filled with a solution and sealed, it becomes quite difficult to open the bottle cap again. Does anyone have any good methods to open the bottle cap easily?
As a supplement, wax was also added to seal the bottle stopper.
Slightly heat the outer edge of the bottle mouth with a lighter； Or heat the outer edge of the bottle mouth with hot water at around 90 degrees ； Then turn it open. I’ve managed to open it successfully many times this way!
Adding to what the person above said: if it won’t open after heating, you can gently tap the bottle cap against the edge of the table, but be careful with the force used.
The reason it won’t open is that the pressure inside the bottle has decreased. Therefore, under permissible conditions, appropriate heating can be applied to allow water to wet the joint and reduce friction.
Mainly involve internal and external dissolution crystallization due to water immersion, heating to increase pressure to prevent inward absorption, and gentle tapping to loosen it.