About: http://webisa.webdatacommons.org/442383406

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	ed as a catalyst, although other acids such as sulfuric acid, nitric acid, phosphoric acid, p-toluenesulfonic acid and oxalic acid may be added in catalytic amounts to the reaction mixture.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com