About: http://webisa.webdatacommons.org/223765450

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	Neither the first preliminary HF removal step nor the second HF removal step are performed by distillation, but, as described above, by stripping, adsorption, washing with water or alkaline aqueous solutions or other means.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com