PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The main ingredients of conventional wet etchants are: an oxidizer, for example hydrogen peroxide or nitric acid; an acid or base to dissolve the oxidized surface, for example sulfuric acid or ammonium hydroxide; and a diluent media to transport reactants and products, for example water or acetic acid.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com