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Barium oxide, nitride etc...

...are definitely NOT gases at room temperature. But as a thin layer they could be transparent, hence you don't see them anymore. Also, as you say, these compounds may accumulate into small partcles instead of a continuous metal film, so the film becomes partly transparent even if the material in the particles is not.


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  • Barium oxide, nitride etc... - JJ Triode 14:22:57 03/22/06 (0)


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