This page will contain all my samples of the element Helium (He).
Low pressure ampoule of helium gas, 10x40mm, borosilicate glass.
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Low pressure ampoules of Hydrogen, Nitrogen, Oxygen and five of the noble gases 10x40mm ampoule, borosilicate glass. I managed to get these... -
Cobalt is pretty easy to come across! Despite pure cobalt metal (Co), as show in the form of electrolytic flakes below not being all that ea...
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