PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The cation exchange is accomplished by dispersing the clay mineral in water or a mixture of water and a miscible organic solvent such as alcohol in which is dissolved a quantity of the organic cation sufficient to satisfy the C.E.C. of the clay mineral.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com