About: http://webisa.webdatacommons.org/61993128

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 starting material may be used even in an unpurified form, unless it contains any impurities such as hydrocarbons and halogenated hydrocarbons which may interfere with the present process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk