About: http://webisa.webdatacommons.org/332036124

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	Fume ex-traction is not normally required, al-though a cover over the tank or traywhen not in use is a good idea.You should always use the hexahy-drate type of ferric chloride, whichshould be dissolved in warm water un-til saturation.
http://www.w3.org/ns/prov#wasQuotedFrom	scribd.com