About: http://webisa.webdatacommons.org/167737214

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	Experience has shown that both inorganic and organic ions and molecules of nearly all kinds of chemical substances can be separated even if the substances, as in homologous series, are very closely related chemically.
http://www.w3.org/ns/prov#wasQuotedFrom	unodc.org