About: http://webisa.webdatacommons.org/314693900

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	It is preferred to exclude atmospheric oxygen from the reaction system and such exclusion is readily attained by sweeping a non-oxidizing gas such as nitrogen or helium through the system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com