About: http://webisa.webdatacommons.org/306802984

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 preferred acid is sulfuric acid (particularly concentrated sulfuric acid). [0196] The acid anhydride employed is, for example, a lower-aliphatic acid anhydride such as acetic acid anhydride, propionic acid an hydride and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com