About: http://webisa.webdatacommons.org/39017528

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	The reaction time is usually from about 30 minutes to about 24 hours including the time of the dropwise addition of the nitrite solution.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com