<http://webisa.webdatacommons.org/prov/59425077>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/429185995> .
<http://webisa.webdatacommons.org/prov/59425065>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/429185995> .
<http://webisa.webdatacommons.org/429185995>	<http://www.w3.org/ns/prov#value>	"Precipitated silica is usually produced commercially by combining an aqueous solution of a soluble metal silicate, ordinarily alkali metal silicate such as sodium silicate or potassium silicate, and an acid so that colloidal particles will grow in weakly alkaline solution and be coagulated by the alkali metal ions of the resulting soluble alkali metal salt." .
<http://webisa.webdatacommons.org/429185995>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/429185995>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .