Assertion: elemental phosphorus | /r/HasProperty | isolated
Facets:
value: from human urine
type: LOCATION
value: in 1669
type: TEMPORAL
value: historically first
type: TEMPORAL
value: as white phosphorus
type: OTHER
Source sentences:
text: Elemental phosphorus was first isolated from human urine, and bone ash was an important early phosphate source.
text: Demonstrating the link between phosphorus and life, elemental phosphorus was historically first isolated from human urine, and bone ash was an important early phosphate source.
text: Elemental phosphorus was first isolated (as white phosphorus) in 1669 and emitted a faint glow when exposed to oxygen – hence the name, taken from Greek mythology, Φωσφόρος meaning "light-bearer" (Latin Lucifer), referring to the "Morning Star", the planet Venus.
text: Elemental phosphorus was first isolated from human urine, and bone ash was an important early phosphate source.