Thermodynamic equilibrium constant of isobutane-isobutylene-hydrogen system

1973 ◽  
Vol 18 (2) ◽  
pp. 152-154 ◽  
Author(s):  
John Happel ◽  
Reiji Mezaki
Keyword(s):  
Equilibrium Constant ◽  
Thermodynamic Equilibrium ◽  
Thermodynamic Equilibrium Constant ◽  
Hydrogen System

Thermodynamic equilibrium constant of ethyl alcohol-acetaldehyde-hydrogen system

1974 ◽  
Vol 19 (2) ◽  
pp. 110-112 ◽  
Author(s):  
John Happel ◽  
James C. Chao ◽  
Reiji Mezaki
Keyword(s):  
Equilibrium Constant ◽  
Ethyl Alcohol ◽  
Thermodynamic Equilibrium ◽  
Thermodynamic Equilibrium Constant ◽  
Hydrogen System

The equilibrium constant of the reaction Cr2O72- + H2O ↔ 2HCrO,4- at 15° to 45°

1968 ◽  
Vol 21 (6) ◽  
pp. 1445 ◽  
Author(s):  
HG Linge ◽  
AL Jones
Keyword(s):  
Acid Solution ◽  
Equilibrium Constant ◽  
Thermodynamic Equilibrium ◽  
Thermodynamic Equilibrium Constant

The equilibrium Cr2O2-7,+H2O + 2HcrO4 has been studied in acid solution spectrophotometrically. Values have been obtained for the thermodynamic equilibrium constant at 15°, 25°, 35°, and 45°.

Thermodynamic Equilibrium Constant of a Molecular Charge Transfer Complex

1968 ◽  
pp. 276-279
Author(s):  
J.M. WILSON ◽  
R.J. NEWCOMBE ◽  
A.R. DENARO ◽  
R.M.W. RICKETT
Keyword(s):  
Charge Transfer ◽  
Equilibrium Constant ◽  
Thermodynamic Equilibrium ◽  
Charge Transfer Complex ◽  
Thermodynamic Equilibrium Constant ◽  
Molecular Charge

On N-acetylcysteine. Part I. Experimental and theoretical approaches of the N-acetylcysteine/H2O2complexation

1994 ◽  
Vol 72 (10) ◽  
pp. 2094-2101 ◽  
Author(s):  
Jlil Arroub ◽  
Jacqueline Bergès ◽  
Zohreh Abedinzadeh ◽  
Jacqueline Langlet ◽  
Monique Gardès-Albert
Keyword(s):  
Hydrogen Peroxide ◽  
Complex Formation ◽  
Solvent Effect ◽  
Equilibrium Constant ◽  
Thermodynamic Equilibrium ◽  
Continuum Model ◽  
Theoretical Calculations ◽  
Thermodynamic Equilibrium Constant ◽  
Theoretical Approaches ◽  
Biphasic Process

The complexation of N-acetylcysteine (RSH) with hydrogen peroxide has been studied experimentally and theoretically. Experimentally we have measured the evolution of RSH, H2O2, and RSSR (N-acetylcystine) as a function of time. Surprisingly, H2O2 decays by a biphasic process, which is not the case for RSH and RSSR. In the first stage of the kinetics, H2O2 disappears without oxidizing the thiol function of RSH. By analogy with glutathione (GSH), the formation of a complex between RSH and H2O2 has been proposed. The thermodynamic equilibrium constant of complex formation has been determined. Theoretical calculations were performed within the SIBFA method to pinpoint the sites of complexation in isolated and hydrated states. A mixed "discrete–continuum" model was used to evaluate the solvent effect. The two stable complexes found in isolated state have different behaviour under the influence of the solvent. Comparison with complexed GSH is discussed.

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