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Interfacial and Micellization Behavior of Cetyltrimethylammonium Bromide (CTAB) in Water and Methanol-Water Mixture at 298.15 to 323.15 K
Published 2020-01-01“…The micellization behavior of cetyltrimethylammonium bromide (CTAB) in water , 0.1, 0.2, 0.3, and 0.4 volume fractions of methanol at 298.15, 308.15, 318.15, and 323.15 K were investigated by surface tension measurements. The effect of methanol on values of critical micelle concentration (cmc), free energies of micellization ΔGmo, and surface properties viz. maximum surface excess concentration Γmax, area occupied by per surfactant molecule Amin, surface pressure πcmc, solution surface tension γcmc, solvent surface tension (γo), free energies of adsorption ΔGadso, the efficiency of adsorption (pC20), effective Gibbs free energy ΔGeffo, and free energy of surface at equilibrium (Gmin) were investigated using surface tension values. …”
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Temperature and composition dependence of viscosity, refractive index and thermodynamics of viscous flow for benzonitrile + methyl/ethyl/butyl methacrylate binary systems: Experime...
Published 2025-03-01“…The viscosities, η and refractive indices, nD of pure benzonitrile, methyl methacrylate, ethyl methacrylate, n‑butyl methacrylate and of their binary mixtures with benzonitrile as common component, covering the entire composition range were measured at temperatures (293.15, 298.15, 303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure. …”
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Heat Capacity and Thermodynamic Property of Cesium Tetraborate Pentahydrate
Published 2019-01-01“…In order to recover cesium tetraborate pentahydrate (Cs2O·2B2O3·5H2O) from the high concentration cesium-containing salt lake brines and geothermal water resources, the molar heat capacity of Cs2O·2B2O3·5H2O has been measured with a precision calorimeter at the temperature from 303 to 349 K. …”
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Thermodynamic evaluation of intermolecular interaction selectivity in separation of binary mixtures based on the activity coefficients at infinite dilution
Published 2025-03-01“…The intermolecular interactions of the prepared deep eutectic solvents with volatile organic solvents were evaluated based on the activity coefficients at infinite dilution values measured by the use of gas liquid chromatography. Excess thermodynamic properties at infinite dilution including excess enthalpies, Gibbs free energies and entropies were computed to further elucidate the interactions between the systems. …”
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Protection of Brass in HCl Solution by L-Cysteine and Cationic Surfactant
Published 2018-01-01“…Curves obtained in acidic solution in the presence of cysteine after pretreatment in sodium dodecyl sulfate (SDS) by cyclic measurements and potentiodynamic polarization measurements indicate intense inhibition of corrosion processes. …”
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High-temperature mass spectrometric study and modeling of thermodynamic properties in the La2O3-TiO2 system
Published 2025-06-01“…TiO2, TiO, and LaO species were identified in the vapor. From the measured partial pressures of the vapor species, the TiO2 activity as a function of composition was determined at the temperatures of 2290 K and 2475 K. …”
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Heat Capacities and Thermodynamic Properties of Pinnoite and Inderite
Published 2020-01-01“…On the basis of molar heat capacities (Cp,m) of Pin and Ind, the thermodynamic functions of entropy, enthalpy, and Gibbs free energy at the temperature of 1 K interval for the two minerals were obtained for the first time.…”
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Heat Capacity and Thermodynamic Properties of Cesium Pentaborate Tetrahydrate
Published 2020-01-01“…This paper reports the molar heat capacities of β-CsB5O8·4H2O, which were measured by an accurate adiabatic calorimeter from 298 to 373 K with a heating rate of 0.1 K/min under nitrogen atmosphere. …”
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Potential Diversity of Natural Regeneration in Peat Swamp Forest: A Case Study at Forest for Specific Purpose (KHDTK) Tumbang Nusa, Central Kalimantan
Published 2017-07-01“…Seedling bank, seed rain, and seed soil bank as the indicators of natural regeneration potential were measured from series of plots located following the distance gradient. …”
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Thermodynamic assessment of the Pb-Sr system
Published 2017-01-01“…Comprehensive comparisons between the calculated and measured phase diagram and thermodynamic data show that the experimental information is satisfactorily accounted for by the present thermodynamic description.…”
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Potential of Co(II) and Cd(II) chelates of N′-(3-fluorobenzoyl)benzo[d]thiazole-2-carbohydrazide: Structural aspects, binding interactions, biological and molecular docking studies...
Published 2025-01-01“…The kinetic and thermodynamic parameters obtained by Coats-Redfern relations reveal that both the complexes show positive Gibbs’s free energy and negative entropy. The equilibrium studies by potentiometry revealed the dissociation constant (pKa) of MFBBTCH as 8.4 and the formation of M:L complexes as 1:1 and 1:2 in solution. …”
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Hydrochemical characteristics, water quality and diatom assemblage in Dordi River, Nepal
Published 2025-01-01“…Piper plot, Gibbs plot, Mixing plots, redundancy analysis, and principal component analysis were applied for evaluating the spatial variation of anions and cations in water. …”
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Hydrogeochemical characterization of groundwater using water quality index and multivariate statistical analysis in Binji town and environs, Sokoto basin, Northwestern Nigeria
Published 2025-01-01“…The main aim of the study was to characterize the groundwater in the study area through the application of indexing and statistical methods. Measured PH revealed 12 samples to be acidic and 15 samples to be alkaline with majority of the samples from dug wells having PH that indicates alkalinity. …”
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Investigation of the Ternary System, Water/Hydrochloric Acid/Polyamide 66, for the Production of Polymeric Membranes by Phase Inversion
Published 2025-01-01“…The theoretical cloud point curve was calculated based on “Boom’s LCP Correlation” and compared to the curve of the experimental cloud point. The ternary Gibbs free energy of mixing and <i>χ</i><sub>23</sub> indicated FA as the best solvent for the PA66. …”
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CALPHAD-aided synthesis and characterization of an Al–Co–Cr–Fe–Ni–W high-entropy alloy prepared by arc melting and spark plasma sintering
Published 2025-01-01“…Contrary to the thermodynamic predictions, after equilibration and quenching, the dissolution of the μ phase was observed due to the Gibbs-Thomson effect, which enhanced W solubility in the FCC solid solution. …”
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Green Synthesis of Nanostructure CeO2 Using Tea Extract: Characterization and Adsorption of Dye from Aqueous Phase
Published 2021-01-01“…The thermodynamic parameters, including the changes in Gibb’s free energy, enthalpy, and entropy, suggested that the adsorption of CR on the synthesized CeO2 sample was a spontaneous and endothermic process.…”
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