Assertion: osmium | /r/HasProperty | retained in the solution
Facets:
value: after the solid-liquid separation
type: TEMPORAL
Source sentences:
text: The leach liquor that contains ruthenium, osmium adds an amount of ethanol at normal temperatures, leaves standstill 3～6h, and the ruthenium in the solution is reduced into Ru (OH) 4 Precipitation, osmium still is retained in the solution after the solid-liquid separation, and the chemical reaction that is taken place is: