Authors:A. Hadj Mebarek, C. Cogneville, S. Helle, and S. Walter
The formation of alkali metal alcoxides by an alcohol reacting on the elemental metal itself cannot be completed under stoichiometric
conditions. As a consequence of solvation, the chemical activity of the reacting alcohol is drastically reduced. Thus, the
reaction cannot undergo completion without a large excess of alcohol with respect to the alkali metal. Moreover, solvation
processes can drop the reaction kinetics down to nearly zero. When an excess of alkali metal is reacted with alcohol, the
heat accumulated by solvation can be suddenly released by an addition of pure alcohol. Extremely dangerous thermal runaways
can be started this way.
Authors:S. Kurkov, G. Perlovich, and W. Zielenkiewicz
dependences of solubility, saturated vapour pressure and crystal heat capacity
of [4-(Benzyloxy)phenyl]acetic acid were determined. The solubility of this
compound was investigated in n-hexane,
buffered water solutions with pH 2.0 and 7.4 and n-octanol.
The enthalpy of sublimation and vaporization as well as the fusion temperature
were determined. Solvation and solubility processes have been analyzed. The
thermodynamics of transfer processes from one buffer to another (protonation
process), from buffers to 1-octanol (partitioning process), and from n-hexane to the applied solvents (specific interaction)
have been calculated and compared to those of other NSAIDs. The relevant shares
of specific and non-specific interactions in the process of solvation have
been investigated and discussed.
The aim of this investigation was to study the influence of electrolytes on a reaction of triiodide complex formation. Investigation
of the salt effect as concerns the thermodynamics of I
formation in methanol, ethanol and n-propanol solutions revealed regularities of the influence of the electrolyte on triiodide
complex formation connected with a multifactorial effect of the ionic medium. The quasichemical model presented was used to
calculate parameters reflecting the overall salt effect.
for the solvation of Lennard-Jones, LJ, disks and for the pairwise association of such disks that are in qualitative agreement with both experimental data and simulation results in detailed water models [ 8 – 10 ]. The success of the Mercedes
GLUCK, D. and WOLF, T. R., Defect groups and character heights in blocks of solvable groups. II, J. Algebra 87 (1984), 222-246. MR 85c :20008
Defect groups and character heights in blocks of solvable groups. II
coefficient for rigid molecules in solution depends mainly on the properties of the solvation layer.
This techniques have been applied to a range of macromolecular unfolding transitions [ 5 , 16 , 18 – 23 ], but the results are difficult to interpret
various constitutional systems. 4 In this text we will consider it in particular from the perspective of the constitutional court, which is forced to solve the various subtle problems of the institutional arrangement of the state. We will, therefore
Authors:Behbehani G. Rezaei, A. A. Saboury, E. Poorakbar, and L. Barzegar
+ concentrations indicates that the structural effects compensate each other in the free energy which supports the extended solvation model. [Cu 2+ ] T are the total concentrations of Cu(NO 3 ) 2 solution in mM