PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The metal hydroxide reactant is a mono-, bi-, or tri-valent metal hydroxide, preferably a mono-valent metal hydroxide, and most preferably an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com