Definition of carbonic acid in English:

carbonic acid


mass noun
  • A very weak acid formed in solution when carbon dioxide dissolves in water.

    Chemical formula: H₂CO₃

    • ‘Finally, if ammonium carbonate is placed in water, the weak base ammonium carbonate and weak acid carbonic acid are produced.’
    • ‘Initially, the ammonia and carbon dioxide reacts with water to form the weak electrolytes, ammonium hydroxide and carbonic acid.’
    • ‘In limestone caves, the main source of this acidity is carbon dioxide dissolved to form weak carbonic acid in meteoric waters, although sulphuric acid may be important in thermal waters.’
    • ‘Caverns throughout the world are formed by the action of atmospheric carbonic acid (water plus carbon dioxide) on limestone to form the more soluble calcium bicarbonate.’
    • ‘This neutralizes carbonic acid and transports carbon dioxide in the blood.’


carbonic acid

/kɑːˌbɒnɪk ˈasɪd/