Results 1 to 10 of about 100,050 (220)

"Evaluation of Standard Changes in Enthalpy During Complex Formation of Mn(II), Ni(II), Cd(II) and Hg(II) with p-fluorobenzoylthioacetophenone"

THE SCIENTIFIC TEMPER, 2022
The stability constant values of the complexes of p-fluorobenzoylthioacetophenone with bivalentmanganese, nickel, cadmium and mercury at different temperatures viz. 283K, 293K and 303Khave been determined using Calvin-Bjerrum’s pH titration technique as adopted by Irving andRossotti. Standard change in free energy at desired temperatures were evaluated
Hashmat Ali, Kunal Kumar, Anjali ., Nishant Soren, Rohit Kumar Ravi   +4 more
  +6 more sources

Gibbs free energy of formation of Cu2In2O5 ternary phase determined by E.M.F. method [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2022
Employing electrochemical cells with the solid zirconia electrolyte: Cu2O,CuO/O2-/air Cu2In2O5, In2O3,Cu2O/O2-/air In,In2O3/O2-/Ni, NiO Gibbs free energy of formation of solid Cu2In2O5 phase as well as that for In2O3 and CuO oxides was ...
Jendrzejczyk-Handzlik Dominika, Handzlik Piotr   +1 more
doaj   +1 more source

Thermochemical Study of 1-Methylhydantoin

Molecules, 2022
Using static bomb combustion calorimetry, the combustion energy of 1-methylhydantoin was obtained, from which the standard molar enthalpy of formation of the crystalline phase at T = 298.15 K of the compound studied was calculated.
Juan M. Ledo, Henoc Flores, Fernando Ramos, Elsa A. Camarillo   +3 more
doaj   +1 more source

Thermodynamic and Spectroscopic Studies of SDS in Cinnamaldehyde + Ethanol Mixtures: Influences of Temperature and Composition

Applied Sciences, 2022
The study of intermolecular interactions between ethanol (E-OH), cinnamaldehyde (CAD) with anionic surfactant sodium dodecyl sulfate (SDS) in non-aqueous media has been examined by utilizing conductometric and spectroscopic techniques.
Waleed M. Alamier, Shadma Tasneem, Arshid Nabi, Nazim Hasan, Firdosa Nabi   +4 more
doaj   +1 more source

Some empirical correlations between the thermodynamic properties of hydrogen cyanide, water and acetylene molecules and their infrared spectra [PDF]

Trakia Journal of Sciences, 2018
A new method for calculating vibrational modes in the infrared region of the spectrum is proposed. The method is based on the thermodynamic parameters of the molecules- standard molar Gibbs free energy change of molecular formation ΔGf0 (kJ/mol ...
A. Atanasov
doaj   +1 more source

Thermodynamics of formation of solid solutions between BaZrO3 and BaPrO3

Chimica Techno Acta, 2020
A linear relationship between the standard enthalpy of formation from binary oxides, ΔfHox, and the Goldschmidt tolerance factor, t, for some AIIBIVO3 (A = Ca, Sr, Ba; B = Ti, Zr, Hf, Ce, Pr, Tb, U, Pu, Am) perovskite oxides was used for estimation of ...
Dmitry S. Tsvetkov, Vladimir V. Sereda, Dmitry A. Malyshkin, Anton L. Sednev-Lugovets, Andrey Yu. Zuev, Ivan L. Ivanov   +5 more
doaj   +1 more source

Adsorption studies of methylene blue and lead ions from aqueous solution by using mesoporous coral limestones

South African Journal of Chemical Engineering, 2020
In this work low cost and readily available Mauritius coral limestones (MCLS) were used as adsorbents for the removal of methylene blue (MB) and lead (Pb(II)) ions from aqueous solution. The adsorption studies were conducted under varying parameters such
Cynthia Sibongile Nkutha, Ntaote David Shooto, Eliezer Bobby Naidoo   +2 more
doaj   +1 more source

Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether [PDF]

, 2016
The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4 MPa and in the temperature range of 413-463 K over the ion ...
Bringué Tomàs, Roger, Cunill García, Fidel, Iborra Urios, Montserrat, Pérez-Maciá, María Ángeles, Tejero Salvador, Xavier   +4 more
core   +1 more source

Carbides and Nitrides of Zirconium and Hafnium. [PDF]

, 2019
Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab ...
Hong, Qi-Jun, Navrotsky, Alexandra, Ushakov, Sergey V, van de Walle, Axel   +3 more
core   +1 more source

Chemical equilibrium of hydrogen and aqueous solutions of 1:1 bicarbonate and formate salts with a common cation [PDF]

, 1997
This was accomplished for the sodium (M = Na), potassium (M = K) and ammonium (M = NH4) systems by measuring the equilibrium composition. This reaction was allowed to proceed from both sides of the equilibrium in a suspension of Pd/C and Pd/γ-Al2O3 ...
Engel, D.C., Swaaij, W.P.M. van, Versteeg, G.F.   +2 more
core   +3 more sources