About: http://webisa.webdatacommons.org/449810984

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	where R??? is C8 to C20 alkyl, preferably C10 to C18 and more preferably C12 to C15; P is 2 to 8, preferably 2 to 6, and more preferably 2 to 4; and M is an alkali metal, such as sodium and potassium, or an ammonium cation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com