About: http://webisa.webdatacommons.org/165393779

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	If desired, the mixture can be filtered at this stage, to free it of contaminants including pigments, fillers, and polymeric degradation products.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es