About: http://webisa.webdatacommons.org/59578324

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 sacrificial calcium is associated with the ferrites so as to be available for chemical reactions, particularly in an air or water environment to form protective phases.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com