Assertion: hafnium | /r/CapableOf | react with iodine
Facets:
value: at temperatures of 500 °c
type: LOCATION
value: in a closed vessel
type: LOCATION
Source sentences:
text: In a closed vessel, hafnium reacts with iodine at temperatures of 500 °C, forming hafnium(IV) iodide; at a tungsten filament of 1700 °C the reverse reaction happens, and the iodine and hafnium are set free.