Assertion: pure erbium | /r/CapableOf | dissolve in diluted acids
Facets:
value: except hydrofluoric acid
type: OTHER
value: because of formation of the protective fluoride
type: CAUSE
value: quickly
type: MANNER
Source sentences:
text: It slowly reacts with water and quickly dissolves in diluted acids, except hydrofluoric acid (HF) because of formation of the protective fluoride (ErF 3 ) layer on the surface of the metal.