About: http://webisa.webdatacommons.org/15602586

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 pH of the reaction mixture is then reduced to about 4.0 and preferably to about 1.8 to 3.0 with any suitable acid such as sulfuric,'hydrochloric, formic and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca