About: http://webisa.webdatacommons.org/358870848

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Such precursors include salts such as sodium bromide, potassium sulfate, ammonium tungstate and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es