About: http://webisa.webdatacommons.org/13431555

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	RO2, which is often present as an impurity in amounts up to 1 weight-percent, but is seldom used otherwise except for unusual purposes, includes such ingredients as TiO2, MnO2, and ZrO2.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com