About: http://webisa.webdatacommons.org/413584743

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	Alternatively, before addition of the imidazolium surfactant, the clay may be pre-exfoliated with a cationic surfactant such as an ammonium salt.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com