Results 81 to 90 of about 160,991 (216)

THERMODYNAMIC PARAMETERS OF POTASSIUM BITARTRATE DURING THE YOUNG WINES COLD STABILIZATION [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2015
The present work was undertaken to study the effect of the treatment temperature on the potassium bitartrate stability and composition of young wines. The thermodynamic parameters, namely ∆G°, ∆H°, ∆S° were calculated to predict the nature of potassium ...
Ecaterina Covaci
doaj  

A kinetic study of Zn halide/TBAB-catalysed fixation of CO2 with styrene oxide in propylene carbonate

open access: yesGreen Processing and Synthesis, 2019
Synthesis of styrene carbonate (SC) via the fixation of CO2 with styrene oxide (SO) has been investigated using a combination of zinc bromide (ZnBr2) and tetrabutylammonium halides (TBAX) as acid-base binary homogeneous catalysts.
Rehman Abdul   +3 more
doaj   +1 more source

Comparative Binding Analysis of Pyrimidine Derivative to BSA: Equilibrium, FTIR and Acoustical Study

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
This paper presented the comparative binding interaction of ethyl-4-(4-hydroxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (4-HP2OTP) and ethyl-4-(2-hydroxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (2 ...
Ajay Madhukarrao Pisudde   +2 more
doaj   +1 more source

Determination of thermodynamic and kinetic parameters of inclusion complex formation of 2-mercaptobenzothiazole with beta-cyclodextrin

open access: yes, 2005
The inclusion of 2-mercaptobenzothiazole by beta-cyclodextrin was studied by spectrophotometry. The absorbance of inclusion complex decreased when beta-cyclodextrin was dissolved in water and the complex was diluted with ethanol.
Zha, F   +2 more
core  

Thermodynamics of complexation of isatin-3-thiosemicarbazone (HIT) and other related derivatives with some metal ions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
Proton-ligand formation constants of isatin-3-thiosemicarbazone (HIT) ; N-acetylisatin-3-thiosemicarbazone (HAIT) and 5-(p-nitrobenzoyl)-1,2,4-triazino[5,6-b]indole-3-thione (HBITr) ligands and their corresponding metal-ligand formation constants with ...
H. H. MENA   +3 more
doaj  

Simple optimized Brenner potential for thermodynamic properties of diamond

open access: yes, 2012
We have examined the commonly used Brenner potentials in the context of the thermodynamic properties of diamond. A simple optimized Brenner potential is proposed that provides very good predictions of the thermodynamic properties of diamond.
Shang BS(尚宝双)   +3 more
core   +1 more source

Characterization of a lipase from a newly isolated Pseudomonas sp

open access: yesIranian Journal of Microbiology, 2013
Background and Objectives: Lipases are valuable biocatalysts which are widely used in the detergent, food, dairy and pharmaceutical industries. The aims of the present study included the isolation of a lipase-producer from industrial zones and the ...
Reyhameh Noormohamadi   +3 more
doaj  

Potentiometric and spectrophotometric studies of the complexation of Schiff-base hydrazones containing the pyrimidine moiety [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
Three Schiff-base hydrazones (ONN – donors) were prepared by condensation of 2-amino-4-hydrazino-6-methylpyrimidine with 2-hydroxyacetophenone, 2-methoxybenzaldehyde and diacetyl to yield 2-OHAHP, 2-OMeBHP and DHP, respectively.
M. SHEBL   +3 more
doaj  

An Energetic Analysis of the Phase Separation in Non-Ionic Surfactant Mixtures: The Role of the Headgroup Structure

open access: yesEntropy, 2014
The main goal of this paper was to examine the effect of the hydrophilic surfactant headgroup on the phase behavior of non-ionic surfactant mixtures.
José Manuel Hierrezuelo   +2 more
doaj   +1 more source

Thermodynamic Parameters of Lead Sulfide Crystals in the Cubic Phase

open access: yes, 2015
Geometric and thermodynamic parameters of cubic PbS crystals were obtained using the computer calculations of the thermodynamic parameters within density functional theory method DFT.
B. P. Volochanska, Volochanska, B. P.
core   +1 more source

Home - About - Disclaimer - Privacy