About: http://webisa.webdatacommons.org/261994030

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 polymer is cross-linked with a multivalent ion, preferably using calcium chloride or other divalent or multivalent cation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com