About: http://webisa.webdatacommons.org/152029317

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	It is also used in etching iron, in removing iron scale from forgings, in petroleum refining, etc, and in general its manufacture is the most important and fundamental of all the chemical industries.
http://www.w3.org/ns/prov#wasQuotedFrom	biology-online.org