Results 11 to 20 of about 61,606 (285)

Thermodynamic Properties of 3- and 4-Ethoxyacetanilides between 80 and 480 K

Molecules, 2023
In this work, we present a comprehensive study of the thermodynamic properties of 3-and 4-ethoxyacetanilides. The heat capacities in crystalline, liquid, and supercooled liquid states from 80 to 475 K were obtained using adiabatic, differential scanning (
Andrey A. Sokolov, Mikhail I. Yagofarov, Ilya S. Balakhontsev, Ilyas I. Nizamov, Timur A. Mukhametzyanov, Boris N. Solomonov, Yana N. Yurkshtovich, Elena N. Stepurko   +7 more
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Application of Solution Calorimetry to Determining the Fusion Enthalpy of an Arylaliphatic Compound at 298.15 K: n-Octadecanophenone

Liquids, 2022
Evaluating the temperature dependence of the fusion enthalpy is no trivial task, as any compound melts at a unique temperature. At the same time, knowledge of the fusion enthalpies under some common conditions, particularly at the reference temperature ...
Mikhail I. Yagofarov, Ilya S. Balakhontsev, Andrey A. Sokolov, Boris N. Solomonov   +3 more
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First and Second Dissociation Enthalpies in Bi-Component Crystals Consisting of Maleic Acid and L-Phenylalanine

Molecules, 2021
The energetics of the stepwise dissociation of a A:B2 bi-component crystal, according to A:B2(cr) → A:B(cr) + B(cr) and A:B(cr) → A(cr) + B(cr), was investigated using MA:Phe2 and MA:Phe (MA = maleic acid; Phe = L-phenylalanine) as model systems.
Inês O. Feliciano, Daniela P. Silva, M. Fátima M. Piedade, Carlos E. S. Bernardes, Manuel E. Minas da Piedade   +4 more
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Sublimation/vaporization and solvation enthalpies of monosubstituted pyridine derivatives

Chemical Thermodynamics and Thermal Analysis, 2022
Different sectors, including medicine and display technology, utilize substituted pyridines. To establish the quality of products manufactured from pyridines, chemical thermodynamics of the solvation and evaporation enthalpies of the pyridines are ...
Rawand S. Abdullah, Boris N. Solomonov
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Thermodynamics of dissolution and infrared-spectroscopy of solid dispersions of phenacetin

Journal of Advanced Pharmaceutical Technology & Research, 2016
In this work enthalpies of dissolution in water of polyethylene glycols (PEGs) having an average molecular weight of 1000 and 1400, Pluronic-F127, phenacetin as well as the composites prepared from them were measured using solution calorimetry at 298.15 ...
Alexander V Gerasimov, Mikhail A Varfolomeev, Marat A Ziganshin, Valery V Gorbatchuk, Il′naz T Rakipov, Alexander E Klimovitskii, Liana S Usmanova   +6 more
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In situ synthesis, structural chemistry and vibrational spectroscopy of Zn-doped Ca5Mg4(VO4)6

Chimica Techno Acta, 2022
The phase formation of the solid solution Ca5Mg4–xZnx(VO4)6 (0≤x≤4) was studied in situ using differential scanning calorimetry and high-temperature X-Ray powder diffraction (XRPD). XRPD analysis shows the appearance of unavoidable secondary pyrovanadate
Anna S. Tolkacheva, Sergey N. Shkerin, Sofya A. Petrova, Olga M. Fedorova, Svetlana G. Titova, Ivan I. Leonidov   +5 more
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Direct Determination Of γ′ / γ′+γ / γ Phase Boundaries In Ni-Al-Cr System Based On Enthalpy Of Formation Results Obtained By Calorimetric Solution Method

Archives of Metallurgy and Materials, 2015
The work is a continuation of the research carried out on a high-temperature calorimeter solution type on alloys from Ni-Al-Cr system. Thanks to the construction innovation introduced by authors the device allows the determination of the formation ...
Maciąg T., Rzyman K., Węcki B.
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Low-pickle Processing of Leather: Assessment of Leather Tanning Quality by Methods of Thermal Analysis

Medžiagotyra, 2020
Pelt obtained by deliming with peracetic acid can be chromed after additional treatment with sodium chloride or oxalic acid solution, or directly tanned using synthetic tannins.
Virgilijus VALEIKA
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Secondary Emission Calorimetry

Instruments, 2022
Electromagnetic calorimetry in high-radiation environments, e.g., forward regions of lepton and hadron collider detectors, is quite challenging. Although total absorption crystal calorimeters have superior performance as electromagnetic calorimeters, the
Burak Bilki, Kamuran Dilsiz, Hasan Ogul, Yasar Onel, David Southwick, Emrah Tiras, James Wetzel, David Roberts Winn   +7 more
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New Polymorph of β-Cyclodextrin with a Higher Bioavailability

Chemistry, 2023
A new polymorph of anhydrous β-cyclodextrin (polymorph III) was obtained and characterized for the first time using powder X-ray diffraction, infrared spectroscopy, and thermal analysis.
Askar K. Gatiatulin, Ilya S. Balakhontsev, Sofia M. Talashmanova, Marat A. Ziganshin, Valery V. Gorbatchuk   +4 more
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