Hammett acidity function in concentrated aqueous solutions of hydrochloric acid–lithium chloride

1971 ◽  
Vol 0 (0) ◽  
pp. 2074-2077 ◽  
Author(s):  
E. Högfeldt ◽  
P. J. Staples
Keyword(s):  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Lithium Chloride ◽  
Acidity Function ◽  
Concentrated Aqueous Solutions ◽  
Hammett Acidity Function

scholarly journals Protonation constants of hydroxybenzenes in hydrochloric acid

1999 ◽  
Vol 64 (9) ◽  
pp. 533-538
Author(s):  
D.S. Veselinovic ◽  
M.V. Obradovic ◽  
S.B. Tosic
Keyword(s):  
Hydrochloric Acid ◽  
Aqueous Solutions ◽  
Absorption Spectra ◽  
Protonation Constants ◽  
Acidity Function ◽  
Absorption Bands ◽  
Graphic Dependence ◽  
Mineral Acids ◽  
Hammett Acidity Function

The absorption spectra of monohydroxybenzene (Fen), 1,3-dihydroxybenzene (Rez), 1,4-dihydroxybenzene (Hi), 1,2,3-trihydroxybenzene (Pg) and 1,3,5-trihydroxy-benzene (Fg) in aqueous solutions of hydrochloric acid with different values of the Hammett acidity function(H0) have two absorption bands in the region between 190-220 nm and 260-290 nm. This behavior is similar in another mineral acids (H2SO4, H3PO4, HClO4). The absorbance decreases with increasing of acidity (with decreasing of H0 values) because of O-protonation. The absorption maxima shift to longer wave-lengths, and the graphic dependence of the absorption of the second band as a function of H0 gives characteristic S-curves. These curves show the different effect of the acid on the form the protonation of the investigated hydroxybenzenes. The potonation constants of the hydroxybenzenes were calculated: pKFen=-1.95; pKRez=-2.40; pKHi= -1.93; pKPg=-2.95; pKFg=-1.83.

Investigations of clustering of ions and diffusivity in concentrated aqueous solutions of lithium chloride by molecular dynamic simulations

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15328-15337 ◽  
Author(s):  
Meena B. Singh ◽  
Vishwanath H. Dalvi ◽  
Vilas G. Gaikar
Keyword(s):  
Diffusion Coefficient ◽  
Aqueous Solutions ◽  
Molecular Dynamic ◽  
Lithium Chloride ◽  
Molecular Dynamic Simulations ◽  
Coordination Structure ◽  
Dynamic Simulations ◽  
Concentrated Aqueous Solutions

The diffusion coefficient of Li+ ions decreases with increase in LiCl concentration which depends on the size of coordination structure of ions formed in solutions.

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