Bronsted base


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Brøn·sted base

(bron'sted),
any molecule or ion that combines with a proton, for example, OH-, CN-, NH3; this definition replaces the older and more limited concepts of base (3) (q.v.).

Brøn·sted base

(brŭn'shtet bās)
Any molecule or ion that combines with a proton; e.g., OH-, CN-, NH3; this definition replaces the older and more limited concepts of base (3).

Brønsted,

Johannes N., Danish physical chemist, 1879-1947.
Brønsted acid - an acid that is a proton donor.
Brønsted base - any molecule or ion that combines with a proton.
Brønsted theory - that an acid is a substance, charged or uncharged, liberating hydrogen ions in solution, and that a base is a substance that removes them from solution.
References in periodicals archive ?
Modification of the saponite surface with 7 wt.% of magnetite leads to the decrease in the number of Bronsted base sites (pK = 7.6) and to the increase in the number of Bronsted acid sites (pK = 5.25), which explains the decrease in [pH.sub.iip] compared to saponite, as well as the higher adsorption affinity for anionic dye compared to saponite.
Protic ILs have the additional advantage that the proton activity can be adjusted by the choice of Bronsted base and Bronsted acid used in their formation (Byrne & Angell 2008).
The (A) sites act as Bronsted bases while the (B) sites act as Bronsted acids.
PILs, consisting of combinations of Bronst- ed acids and bases, are a subset of ILs, the Bronsted bases function as acceptors of the protons of the Bronsted acids and thus act as proton-carriers in the liquids.