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dibasic

[ dahy-bey-sik ]

adjective

, Chemistry.
  1. containing two replaceable or ionizable hydrogen atoms:

    dibasic acid.

  2. having two univalent, basic atoms, as dibasic sodium phosphate, Na 2 HPO 4 .


dibasic

/ ˌdaɪbeɪˈsɪsɪtɪ; daɪˈbeɪsɪk /

adjective

  1. (of an acid, such as sulphuric acid, H 2 SO 4 ) containing two acidic hydrogen atoms Compare diacidic
  2. (of a salt) derived by replacing two acidic hydrogen atoms

    dibasic sodium phosphate, Na2HPO4

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


dibasic

/ dī-bāsĭk /

  1. Relating to an acid that contains two hydrogen atoms that can be replaced by metal ions. Sulfuric acid (H 2 SO 4 ) is a dibasic acid. The hydrogens can be replaced by sodium and hydrogen to form sodium hydrogen sulfate (NaHSO 4 ) or by two sodium atoms to form sodium sulfate (Na 2 SO 4 ).
  2. Relating to a compound that contains two basic monovalent groups or atoms.


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Derived Forms

  • dibasicity, noun
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Other Words From

  • di·ba·sic·i·ty [dahy-bey-, sis, -i-tee], noun
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Word History and Origins

Origin of dibasic1

First recorded in 1865–70; di- 1 + basic
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Example Sentences

Acids yielding two hydrogen ions in solution are called dibasic acids.

COOH, is likewise a dibasic acid, known as amido-pyrotartaric acid.

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Dibaidibasic potassium phosphate