PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In general, we find it convenient to carry out the reaction at a temperature of from 50??? C. to 180??? C., more preferably from 80??? C. to 150??? 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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