The Hammett acidity function (H0) is a measure of acidity that is used for very concentrated solutions of strong acids, including superacids. It was proposed...

notably the Hammett acidity function, H0, for superacid media and its modified version H− for superbasic media. The term acidity function is also used...

definition) is an acid with an acidity greater than that of 100% pure sulfuric acid (H2SO4), which has a Hammett acidity function (H0) of −12. According to...

pure sulfuric acid, by many orders of magnitude, according to its Hammett acidity function. It even protonates some hydro­carbons to afford pentacoordinate...

times stronger than 100% pure sulfuric acid in terms of their Hammett acidity function values (H0 ≤ −18) and possess computed pKa values well below −20...

convenient acidity function. Other acidity functions have been proposed for non-aqueous media, the most notable being the Hammett acidity function, H0, for...

of a scheme for comparing their acidities based on what is now known as the Hammett acidity function. The Curtin–Hammett principle bears his name. The awards...

solute (most commonly a weak aniline base) is measured by its Hammett acidity function, the H 0 {\displaystyle H_{0}} value. Although these two concepts...

the Hammett acidity function. For instance, sulfuric acid, H2SO4, has a Hammett acidity function, H0, of −12, perchloric acid, HClO4, has a Hammett acidity...

formation of other polymeric species, H n−1F− n, is highly likely. The Hammett acidity function, H0, for 100% HF was first reported as −10.2, while later compilations...

strict definition refers only to the solute. A lower pH means a higher acidity, and thus a higher concentration of hydrogen cations in the solution. Chemicals...

H3BO3 Perchloric acid HClO4 Hydrogen cyanide HCN Boyd, Claude E. (2020). "Acidity". Water Quality: 215–231. doi:10.1007/978-3-030-23335-8_11. ISBN 978-3-030-23334-1...

carbonic acid) when dissolved. Generally non-metallic oxides are acidic. The acidity of an oxide can be reasonably assumed by its accompanying constituents...

halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically...

in rail transport modelling Higgs boson, in physics, symbol H0 Hammett acidity function, in chemistry, H0 Hubble constant, in cosmology, H0 Null hypothesis...

hydronium/lyonium ion. pH is an example of an acidity function, but others can be defined. For example, the Hammett acidity function, H0, has been developed in connection...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

affinities illustrate the role of hydration in aqueous-phase Brønsted acidity. Hydrofluoric acid is a weak acid in aqueous solution (pKa = 3.15) but...

Dashiell Hammett Hammett Prize Hammett, Georgia, a community in the United States Hammett acidity function Hammett equation, based on the Hammett substituent...

emphasize the kinetic aspect of reactivity, while the Lewis basicity and Lewis acidity emphasize the thermodynamic aspect of Lewis adduct formation. In many cases...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

chemists seek the proton-removing ability of a base without any other functions. Typical non-nucleophilic bases are bulky, such that protons can attach...

as a weak base, reacting with Lewis acids to give superacids. A Hammett acidity function (H0) of −21 is obtained with antimony pentafluoride (SbF5), forming...

strength Acidity function Amphoterism Base Buffer solutions Dissociation constant Donor number Equilibrium chemistry Extraction Hammett acidity function pH...

solution. In biological systems this is an essential condition for enzymes to function correctly. For example, in human blood a mixture of carbonic acid (H 2CO...

− {\displaystyle {\ce {NH3 + H2O -> NH4+ + OH-}}} From this, a pH, or acidity, can be calculated for aqueous solutions of bases. A base is also defined...

Non-Aqueous Solvents. Pergamon Press. Reich, Hans J. "Bordwell pKa Table (Acidity in DMSO)". Department of Chemistry, University of Wisconsin, U.S. Archived...

method is an experimental procedure used by chemists to assess the Lewis acidity of molecular species. Triethylphosphine oxide (Et3PO, TEPO) is used as...