About: http://webisa.webdatacommons.org/411590405

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	These can be dissolved using acids such as Sulfamic Acid, Glucono delta lactone, Polyglycolic Acid, or simply by exposure to the downhole environment for a selected period, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com