About: http://webisa.webdatacommons.org/441165784

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	Such competing ions include alkaline earth metals, particularly calcium or magnesium sulfates, phosphates and halide ions such as chlorides or fluorides.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com