About: http://webisa.webdatacommons.org/9409501

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	In addition to ferric ion, the quantity of which predominates, the solutions contain mainly chromium, nickel, and molybdenum; also present may be copper, vanadium, tungsten, cobalt, manganese, and many others, including titanium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com