About: http://webisa.webdatacommons.org/297763569

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	This is the case even when very small particles of silica and carbon are used, for example silica sol and carbon black.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com