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colourless aqueous solution

Carbonic acid has the formulaH₂CO₃ (equivalently OC(OH)₂). It is also a name sometimes given to solutions of CO₂ in water

Carbonic acid (H2CO3) is produced by dissolving carbon dioxide in water. When formed under pressure, it is the gas used in carbonated drinks. In nature, it dissolves the limestone in caves, resulting in the formation of stalactites and stalagmites. It is corrosive as are other acids, although it is considered a rather weak acid.

Carbonic acid is used in the manufacture of soft drinks, inexpensive and artificially carbonated sparkling wines, and other bubbly drinks.

ChEBI: Carbonic acid is a carbon oxoacid and a chalcocarbonic acid. It has a role as a mouse metabolite. It is a conjugate acid of a hydrogencarbonate.