About: http://webisa.webdatacommons.org/456202605

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	Agents such as polyvinyl alcohol, activated carbon, natural and synthetic clays and silicates such as Laponite, etc. have shown an ability to absorb or block ionic species.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com