About: http://webisa.webdatacommons.org/409884742

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	This problem is particularly acute where oxalic acid is used as a polishing agent.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com