About: http://webisa.webdatacommons.org/444530973

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	The following technique is the most effective for precipitating the product and reducing the level of impurities and by-products.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es