carbonic acid


carbonic acid
H2CO3, formed from H2O and CO2.

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carbonic acid n a weak dibasic acid H2CO3 known only in solution that reacts with bases to form carbonates

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car·bon·ic ac·id (kahr-bonґik) the chemical species H2CO3, which exists in chemical equilibrium with dissolved carbon dioxide in water; its dissociated forms are the bicarbonate (HCO3) and carbonate (CO32−) ions. In the blood the predominant species are HCO3 and dissolved CO2 in approximately a 20:1 ratio. The conversion of CO2 to H2CO3 is catalyzed by the enzyme carbonate dehydratase.

Medical dictionary. 2011.

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  • Carbonic acid — Carbonic Car*bon ic, a. [Cf. F. carbonique. See {Carbon}.] (Chem.) Of, pertaining to, or obtained from, carbon; as, carbonic oxide. [1913 Webster] {Carbonic acid} (Chem.), an acid {HO.CO.OH}, not existing separately, which, combined with positive …   The Collaborative International Dictionary of English

  • carbonic acid — ► NOUN ▪ a very weak acid formed when carbon dioxide dissolves in water …   English terms dictionary

  • carbonic acid — n. a weak, colorless acid, H2CO3, formed by the solution of carbon dioxide in water and existing only in solution …   English World dictionary

  • Carbonic acid — Not to be confused with carbolic acid, an antiquated name for phenol. Carbonic acid is also an archaic name for carbon dioxide Carbonic acid …   Wikipedia

  • carbonic acid — Choke damp, fixed air, foul air, mephitic air, carbonic acid gas …   New dictionary of synonyms

  • carbonic acid — noun a weak acid known only in solution; formed when carbon dioxide combines with water • Derivationally related forms: ↑carbonate • Hypernyms: ↑acid …   Useful english dictionary

  • carbonic acid — noun Date: 1788 a weak dibasic acid H2CO3 known only in solution that reacts with bases to form carbonates …   New Collegiate Dictionary

  • carbonic acid — the acid, H2CO3, formed when carbon dioxide dissolves in water, known in the form of its salts and esters, the carbonates. [1785 95] * * * …   Universalium

  • carbonic acid — noun a weak unstable acid, HCO, known only in solution, and as carbonate salts; it is present in carbonated drinks, and sparkling wine, but decomposes to form …   Wiktionary

  • carbonic acid — weak unsteady and colorless acid that is existent only in solution and is produced by dissolving carbon dioxide in water …   English contemporary dictionary