carbonation vs sodium

carbonation

noun
  • The replacement of calcium hydroxide with calcium carbonate triggered by a chemical reaction. 

  • The amount or level of dissolved carbon dioxide remaining in solution. 

  • The state of having carbon dioxide gas dissolved in a liquid. 

  • Carbonization. 

sodium

noun
  • Employing sodium. 

  • The chemical element (symbol Na) with an atomic number of 11 and atomic weight of 22.990. It is a soft, waxy, silvery, reactive alkali metal that is never found unbound in nature. 

How often have the words carbonation and sodium occurred in a corpus of books? (source: Google Ngram Viewer )