woelen
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Registered: 20-8-2005
Location: Netherlands
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How to use ampoules with a closed sphere?
I purchased a box of ampoules from eBay, but when I received them, they appear to have closed spheres at the neck of the ampoule instead of an open
funnel-like end.
The picture shows one such an ampoule:
![ampoule.jpg - 106kB](http://www.sciencemadness.org/talk/files.php?pid=442072&aid=49035)
How should I put a chemical in the ampoule and seal it? Is there is special way of opening the sphere, putting in the compound, and then sealing it
again?
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Heavy Walter
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Registered: 17-12-2015
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Hi
I assume you already have a torch for sealing ampoules.
Heating at the top of the sphere with a small flame will make a hole with a little expansion of internal air.
Be ready to use a graphite or molybdenum rod to give form to that hole in order to have the entrance to the ampoule.
Sealing could be a bit harder, depending of the finishing.
After several trials, you will see the light!
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