About: http://webisa.webdatacommons.org/78738472

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	Silica has been used for a number of years in a variety of compositions as a filler or for other reasons such as to improve certain properties such as a reinforcing agent and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com