About: http://webisa.webdatacommons.org/168511050

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	Liquid alkali silicate solutions are commercially available from companies such as PQ Corporation of Malvern, Pa. in a wide variety of SiO2 to M2O weight ratios (this ratio may be referred to as the ???R value??? for the solution).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com