About: http://webisa.webdatacommons.org/24361282

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	Furthermore, whereas As2 O3 is a very effective fining agent, because of its ready reducibility, a combination of Sb2 O3 and As2 O3 will be utilized for that purpose, with the level of As2 O3 being held below 0.25% by weight.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca