Assertion: silicon | /r/HasProperty | purified
Facets:
value: by converting it
type: MANNER
Source sentences:
text: When silicon is purified and doped with such elements as boron, phosphorus and arsenic, it is used as a semiconductor in various applications.
text: Today, silicon is purified by converting it to a silicon compound that can be more easily purified by distillation than in its original state, and then converting that silicon compound back into pure silicon.
text: Today, silicon is instead purified by converting it to a silicon compound that can be more easily purified than silicon itself, and then converting that silicon compound back into pure silicon.