By Victor L. Cherginets

Content material: part 1. The perform and conception of kinetics (v.1-3). part 2. Homogeneous decomposition and isomerisation reactions (v.4-5) part three. Inorganic reactions (v.6-7) part four. natural reactions (v.8-13) part five. Polymerisation reactions (v.14-15) part 6. Oxidation and combustion reactions (v.16-17) part 7. chosen undemanding reactions (v.18) part eight. Heterogeneous reactions (v.19-22) part 10. sleek tools, thought, and knowledge (v.24-41) -- part eleven? Modeling of chemical reactions (v.42)

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Additional info for Oxoacidity: Reactions of oxo-compounds in ionic Solvents

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An example presented in Fig. 2 gives a visual presentation of the relative acidities and acid–base ranges of the most important non-aqueous protic and aprotic solvents. The positions of many known acid– base pairs are also presented on this scale. This scale illustrates the above-discussed phenomenon of the levelling of acidic and basic properties that can be seen from the following example concerning the behaviour of acetic acid as a solvent and as a dissolved substance in other solvents. There are three kinds of particles in the pure acetic Fig.

5. For comparison, at 298 K pure water as a solvent is characterized by the pH value equal to 7, and this value remains constant after achieving a certain degree of purity of H2O. The degrees of the oxygen admixture dissociations differ substantially. For example, the addition of even relatively high concentrations of sulfate ions does not result in appreciable changes of O22 concentration in the melt, 2 whereas the effect of addition of CO22 3 and OH on pO values in melts is more considerable.

Moreover, it should be emphasized that the classic solvosystem concept considers the auto-ionization process to be primary, whereas substances dissolved are referred to as acids and bases by the formation of their adducts with cations and anions of the solvent. 20 Homogeneous acid– base equilibria and acidity scales in ionic melts Ch. 1 However, the practice of investigations of acid– base equilibria consists in studies of the reactions with the transfer of definite particles (acid or base) in different solvents, irrespective of the fact whether they are prone to dissociation with the formation of given acid (base), or not.

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