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Overview[edit] A carbonic anhydrase, or carbonate dehydratase, is a type of enzyme that rapidly catalyzes the conversion of carbon dioxide into a proton and the bicarbonate ion (HCO3-).
Carbonic acid is formed when carbon dioxide gas is dissolved in water. H2O + CO2 <--------> H2CO3. Though looking simple, this reaction is the basic principle involved in the manufacture of club soda, coca cola, Pepsi etc.,. These beverages are made by dissolving carbon dioxide gas in water at high pressures.