I’ve seen videos of people opening them close up and it seems like bits of glass go everywhere when they do. Are the glass fragments so small that this doesn’t even matter? Or are most of the videos opening them incorrectly?
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There will be glass particles in the liquid after opening a glass ampule. That is bad. So we draw up the liquid out of the opened ampule with a 5 micron filter needle. This will capture the glass as the liquid is drawn up. Then the filter needle is removed and discarded, taking the glass particles with it. We then place a new non-filter needle on to the syringe to inject the liquid into an IV bag, or a human.
did you also watch the new nile red video? i wondered the same thing.
The glass fragments can contaminate the liquid. If it matters, then the glass fragments need to be filtered out. In chemistry experiments it may not matter immediately and the glass might be removed in later purification steps (like distillation, filtration or similar).
For example, in medical use, injectable medicines from a glass vial must be filtered before use. There are special needles with integrated filters that can be attached to suck the liquid out with a syringe. Then the needle can be changed to an injection needle.
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