About: http://webisa.webdatacommons.org/232504687

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	A small quantity of the catalyst preferably less than onetenth of 1 per cent is placed in the flask or other container before subjecting the reactants or polymer to an elevated temperature.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com