PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Examples of suitable such anions are those typically employed to neutralize a cation such as halides (e.g., Cl-, Br-, and I-), NCS-, SO4 -2, PF6 -, B(C6 H5)4 -, C6 H5 CO2 -, CH3 CO2 -, or mixtures of these anions.
http://www.w3.org/ns/prov#wasQuotedFrom
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