About: http://webisa.webdatacommons.org/180331011

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	The pigment of claim 12, wherein the solvent is sulfuric acid, the leaching is performed at a pH of 0.5 to 3 and the pigment produced is a ferrite pigment of a second grade.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com