About: http://webisa.webdatacommons.org/239867699

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	t exceeding 56, preferably an ion having a radius not larger than 1.0 angstrom, such for example as magnesium, calcium or Zinc or mixtures of two or more, but including strontium and barium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com