<http://webisa.webdatacommons.org/109249317>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/109249317>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/345069535>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/109249317> .
<http://webisa.webdatacommons.org/109249317>	<http://www.w3.org/ns/prov#value>	"An organic solvent, for example methanol, is added to this solution, leading to precipitation of potassium sulfate." .