About: http://webisa.webdatacommons.org/182916747

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	C. under a blanket of refluxing solvent or an inert gas such as nitrogen or carbon dioxide to exclude oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom	archpatent.com