About: http://webisa.webdatacommons.org/309011780

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	Chelating agents can be added to the present composition to control or sequester hardness ions such as calcium and magnesium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com