PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In general, we find in convenient to carry out the reaction at a temperature of from 70??? C. to 150??? C., more preferably from 90??? C. to 120??? C. The time required for the reaction may also vary widely, depending on many factors, notably the reaction temperature and the nature of the reagents and solvent employed.
http://www.w3.org/ns/prov#wasQuotedFrom
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