About: http://webisa.webdatacommons.org/408811162

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Further, the surface of the copper metal particles is substantially free of surfactants or other organic contaminants.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com