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 100??? C., more preferably from -10??? C. to 50??? C. The time required for the reaction may also vary wisely, 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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