About: http://webisa.webdatacommons.org/196942209

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	wherein M is hydrogen or an alkali metal or alkaline earth metal, such as sodium or calcium, with a compound of formula (III)
http://www.w3.org/ns/prov#wasQuotedFrom	google.com