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carbonic acid

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.07 sec.
carbonic acid, H2CO3, a weak dibasic acid (see acids and bases acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water.

Properties


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) formed when carbon dioxide carbon dioxide, chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure.
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 dissolves in water; it exists only in solution. Carbonic acid forms carbonate and bicarbonate (or acid carbonate) salts (see carbonate carbonate (kär`bənāt', –nət), chemical compound containing the carbonate radical or ion , CO3
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) by reaction with bases. It contributes to the sharp taste of carbonated beverages.
carbonic acid
a weak acid formed when carbon dioxide combines with water: obtained only in aqueous solutions, never in the pure state. Formula: H2CO3


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Would he obtain air by chemical means, in getting by heat the oxygen contained in chlorate of potash, and in absorbing carbonic acid by caustic potash?
But it was not enough to renew the oxygen; they must absorb the carbonic acid produced by expiration.
Bubbles of carbonic acid gas will rise to the surface and burst, and make rings two or three feet wide.
 
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