dibasic

American  

[dahy-bey-sik] / daɪˈbeɪ sɪk /

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 .

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dibasic British  

/ 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

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dibasic Scientific  

/ dī-bā′sĭk /

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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Other Word Forms

• dibasicity noun

Etymology

Origin of dibasic

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

Example Sentences

Less-toxic paint strippers have been on the market for years—California authorities recommend ones with benzyl alcohol, soy, or dibasic esters—but they represent the minority of products.

From Slate • Sep. 21, 2015

Researchers at the University of Illinois and at Manhattan's Sydenham Hospital, testing the use of urea and dibasic ammonium phosphate to kill bacteria associated with tooth decay, had reported promising results.

From Time Magazine Archive

Nylon is technically described as "synthetic fibre-forming polymeric amides having a protein-like structure, produced by reacting diamines and dibasic carboxylic acids."

From Time Magazine Archive

The three acids of sulphur are dibasic acids.

From An Elementary Study of Chemistry by McPherson, William

Note.—Just before the end-point is reached, a very slight opalescence may be noted in the fluid, due to the precipitation of dibasic phosphates.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)