About: http://webisa.webdatacommons.org/97798642

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	If the mixture is present in powder form, a mean particle size of from about 20 to about 500 ??m, in particular from about 50 to about 250 ??m, has proven advantageous.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com