About: http://webisa.webdatacommons.org/156181352

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	Alum also can be used as a promoter, especially if the pH is below 6 or if the alum is added at a point where it is in contact with the furnish for a few minutes or less before the retention aid addition.
http://www.w3.org/ns/prov#wasQuotedFrom	ncsu.edu