About: http://webisa.webdatacommons.org/233600809

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 reaction mixture is then refluxed in the presence of a weak acid such as acetic acid for a suffient time (i.e. about 7 hours).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com