About: http://webisa.webdatacommons.org/263566089

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	s any one of their salts such as sulfides, chlorides and fluorides is employed to act as luminescent centers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca