About: http://webisa.webdatacommons.org/230022448

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	The silica according to the invention preferably has an aluminium content of between 0.50 and 1.50% by weight; this content may be especially between 0.75 and 1.40% by weight.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com