Bronsted acid


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Related to Bronsted acid: Arrhenius acid

Brøn·sted ac·id

(bron'sted),
an acid that is a proton donor.
Farlex Partner Medical Dictionary © Farlex 2012

Brøn·sted ac·id

(brŭn'shtet as'id)
An acid that is a proton donor.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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.
Medical Eponyms © Farlex 2012
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References in periodicals archive ?
The increase in the sorption capacity of Sap7-Mo[S.sub.2] for both dyes is related, in our opinion, to the increase in the number of the Lewis base sites and increase in the number of Bronsted acid sites.
Xu, "Influence of a Lewis acid and a Bronsted acid on the conversion of microcrystalline cellulose into 5-hydroxymethylfurfural in a single-phase reaction system of water and 1, 2-dimethoxyethane," RSC Advances, vol.
The external modification of catalyst with surfactant before [H.sub.3]P[O.sub.4] loading, led to passivation of the unselective Bronsted acid sites and to narrowing of the pores of the zeolite.
Proton transfer from a Bronsted acid to a Bronsted base can also form ILs (Yoshizawa et al.
Kreuer has suggested the HPA acts as a Bronsted acid toward the water of hydration, which is generally loosely bound in the structure, resulting in high proton conductivity.
Yamini, Sulfonic Acid Supported on Hydroxyapatite-Encapsulated-I3-Fe2O3 Nanocrystallites as a Magnetically Bronsted Acid for N-formylation of Amines, Appl.
According to the reports [8, 28], the band at 1430 [cm.sup.-1] could be attributed to the bending vibrations of N[H.sub.4.sup.+] ions formed on Bronsted acid sites and the band at 1105 [cm.sup.-1] could be assigned to the hydrogen bonds of adsorbed N[H.sub.3] [21].
Kumar et al., [18] reported that Bronsted acid sites are generated by exchange of inter-lamellar cations with protons and Lewis acid sites correspond to Mg2+ and Al3+ present at the edges of octahedral sheets.
Pyridine FT-IR was used for determining Lewis and Bronsted acid sites of the catalysts (see Fig.
2), indicating that the prepared solid super acid catalysts could both act as Bronsted acid and Lewis acid in the catalytic reaction [12].