About: http://webisa.webdatacommons.org/209458626

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	(x)SiO2 wherein R is a tetraethylammonium cation, M is an alkali metal cation and x is at least 7, and is characterized by a specified X-ray powder diffraction pattern.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es