About: http://webisa.webdatacommons.org/188129385

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	For the present invention, in addition to TFA, such fluorine compounds as HF, NH4 F, and freon also can be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com