carbonic acid

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carbonic acid

carbonic acid H ₂ CO ₃ , a weak dibasic acid (see acids and bases ) formed when carbon dioxide dissolves in water; it exists only in solution. Carbonic acid forms carbonate and bicarbonate (or acid carbonate) salts (see carbonate ) by reaction with bases. It contributes to the sharp taste of carbonated beverages.

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carbonic acid

A Dictionary of Biology | 2004 | Â© A Dictionary of Biology 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

carbonic acid A weak acid, H₂CO₃, formed in solution when carbon dioxide is dissolved in water: CO₂ + H₂O ↔ H₂CO₃

The acid is in equilibrium with dissolved carbon dioxide, and also dissociates into hydrogencarbonate and hydrogen ions. These reactions, catalysed by carbonic anhydrase, take place in the red blood cells when carbon dioxide diffuses into them from the surrounding tissue cells. See also hydrogencarbonate.

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carbonic acid

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

car·bon·ic ac·id • n. a very weak acid, H₂CO₃, formed in solution when carbon dioxide dissolves in water.

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