Assertion: osmium | /r/CapableOf | form volatile perosmic anhydride
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Source sentences:
text: With the noble metal powder of the fragmentation quartz boat of packing into, insert tube furnace, earlier at 100～200 ℃ of dry 2h, be warming up to 300～800 ℃ then gradually, and bubbling air, osmium then forms volatile perosmic anhydride, and ruthenium then is oxidized to weak volatile ruthenium dioxide; The main chemical reactions that process takes place is: