Assertion: boron | /r/HasProperty | unstable
Facets:
value: above −50 °c
type: OTHER
value: above b 8 f
type: OTHER
value: above forms
type: OTHER
Source sentences:
text: A later, systematic, experimental study of the boron oxide phase diagram suggests that B 2 O is unstable.
text: B 3 F 5 is unstable above −50 °C and forms B 8 F 12 .
text: A later, systematic, experimental study of the boron oxide phase diagram suggests that B 2 O is unstable.