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PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
n4faqs.
Subject Item
isa:88034732
rdf:type
prov:Entity
prov:value
impurities, such as sulfur, nitrogen, oxygen, halides, and metals.
prov:wasQuotedFrom
n4:org
Subject Item
isap:105929485
prov:wasDerivedFrom
isa:88034732