PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The complex forming reaction is conducted by heating, preferably at reflux, the o-hydroxythiocyanate with a stoichiometric amount of the metal, e.g. nickel chloride, and a stoichiometric excess of a strong mineral acid, such as dilute HCl, HBr, H2 SO4, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es