About: http://webisa.webdatacommons.org/41174310

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	M is hydrogen or an alkali metal; when M is an alkali metal it is most preferably sodium or potassium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com