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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	Forexample in the alkali metal carbamate salts of sodium or potassium, 18-crown-6 is highly effective as a solvent-catalyst, but additionally a hydrocarbon such as toluene or mixture such as kerosine may be added.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com