Assertion: gaseous hydrogen iodide | /r/HasProperty | kept at 717k
Facets:
value: in a closed vessel
type: LOCATION
value: for about 2 - 3 hours
type: TEMPORAL
Source sentences:
text: On the other hand if gaseous hydrogen iodide is kept at 717K in a closed vessel for about 2 - 3 hours it decomposes to give gaseous hydrogen and gaseous iodine.