About: http://webisa.webdatacommons.org/391114108

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	Preferably, one of the reactants is an ammonium compound, such as ammonium sulfide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com