PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Fluorosilicic acid is evaluated to contain a minimum of 18.22% fluorine and 0.02% heavy metals such as lead, arsenic, cadmium and mercury, along with trace amounts of uranium 238 and the highly radioactive radium, which are all known carcinogens (cancer causing).[7]
http://www.w3.org/ns/prov#wasQuotedFrom
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