PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition to ketene dimer and crystals of tertiary amine hydrogen halide, the initial reaction mixture can contain minor amounts of reaction-typical impurities and by-products such as fatty acids and fatty acid anhydrides as well as any unreacted starting materials such as tertiary amine.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com