About: http://webisa.webdatacommons.org/302878940

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	Chlorine Ammonia, acetylene, butadiene, butane and other 13.0 petroleum gases, hydrogen, sodium carbide, turpentine, benzene and finely divided metals.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov