#carbonate  a salt or ester of carbonic acid
  supertype:  #salt  a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
  subtype:  #ammonium_carbonate  a carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds
  subtype:  #bicarbonate__hydrogen_carbonate  a salt of carbonic acid in which one hydrogen atom has been replaced; an acid carbonate
  subtype:  #lithium_carbonate__lithiumcarbonate__Lithane__Lithonate__Eskalith  a white powder (LiCO3) used in manufacturing glass and ceramics and as a drug; the drug (trade names Lithane or Lithonate or Eskalith) is used to treat some forms of depression and manic episodes of manic-depressive disorder

No statement uses or specializes #carbonate; click here to add one.