Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Prediction of salt effect

Another arena for the application of stochastic frictional approaches is the influence of ionic atmosphere relaxation on the rates of reactions in electrolyte solutions [19], To gain perspective on this, we first recall the early and often quoted triumph of TST for the prediction of salt effects, in connection with Debye-Hiickel theory, for reaction rates In kTST varies linearly with the square root of the solution ionic strength I, with a sign depending on whether the charge distribution of the transition state is stabilized or destabilized by the ionic atmosphere compared to the reactants. [Pg.251]

Correlation and Prediction of Salt Effect in Vapor-Liquid Equilibrium... [Pg.32]

Pure-component properties from which prediction of salt effect in vapor-liquid equilibrium might be sought, include vapor pressure lowering, salt solubility, degree of dissociation and ionic properties (charges and radii) of the salt, polarity, structural geometry, and perhaps others. [Pg.36]

Prediction of Salt Effect from Preferential Solvation Number... [Pg.61]

Prediction of salt effect. The procedure for calculation of the preferential solvation number S has been described above. By reversing this procedure, that is, by determining xia from S, we can estimate the salt effect using the vapor-liquid equilibrium without a salt. When the salt concentration is below saturation, the preferential solvation number S can be expressed as follows in cases where the solvation is formed with the first component. [Pg.69]

Prediction of Salt Effect on Vapor-Liquid Equilibrium A Method Based on Solvation H... [Pg.35]

The preferential solvation formed between salt and solvent molecules causes a salt effect on vapor-liquid equilibria. A method of prediction of salt effect based on the preferential solvation number was reported previously for the case in which salt was solved below the saturation level. The idea introduced in this chapter applies for salt solved in saturation. The alcohol-ester-calcium chloride system for which the preferential solvation was thought to be formed was examined. Specifically, calcium chloride dissolves readily in alcohol but only sparingly in ester. Thus, when calcium chloride is solved into alcohol-ester mixed solvent, the calcium chloride will form a preferential solvation with alcohol only. Methanol-methyl acetate, butanolr-butyl acetate, and methanol-ethyl acetate systems were selected for the mixed-solvent systems. [Pg.35]


See other pages where Prediction of salt effect is mentioned: [Pg.33]    [Pg.35]    [Pg.37]    [Pg.39]    [Pg.40]    [Pg.41]    [Pg.61]    [Pg.63]    [Pg.65]    [Pg.67]    [Pg.69]    [Pg.71]    [Pg.73]    [Pg.75]    [Pg.77]    [Pg.79]    [Pg.21]    [Pg.37]    [Pg.39]    [Pg.41]    [Pg.42]    [Pg.43]    [Pg.45]   


SEARCH



Predictions effect

Salt effect

Salting effects

© 2024 chempedia.info