Results 11 to 20 of about 10,269 (215)

Experimental and Theoretical Investigation on the Thermochemistry of 3-Methyl-2-benzoxazolinone and 6-Nitro-2-benzoxazolinone

Molecules, 2021
The determination of the reliable thermodynamic properties of 2-benzoxazolinone derivatives is the main goal of this work. Some correlations are established between the energetic properties determined and the structural characteristics of the title ...
Ana L. R. Silva, Vânia M. S. Costa, Maria D. M. C. Ribeiro da Silva   +2 more
doaj   +1 more source

Thermodynamic properties of L-menthol in crystalline and gaseous states

Тонкие химические технологии, 2020
Objectives. Menthol causes a cooling sensation and reduces the nerve activity when it is applied locally, ingested, or inhaled. This feature explains its extensive use as both an aromatizer and a flavoring agent in food manufacturing, tobacco industry ...
A. V. Blokhin, Ya. N. Yurkshtovich
doaj   +1 more source

Phase Transitions Equilibria of Five Dichlorinated Substituted Benzenes

Molecules, 2023
This work reports an experimental study aiming to determine the thermodynamic properties of five chlorinated compounds with environmental impact. The vapor pressures of the crystalline phases of three isomers of dichlorobenzoic acid (2,4-, 2,5-, and 2,6-)
Ana R. R. P. Almeida, Bruno D. A. Pinheiro, Manuel J. S. Monte   +2 more
doaj   +1 more source

An investigation on the mechanics of nanometric cutting and the development of its test-bed [PDF]

, 2003
The mechanics of machining at a very small depth of cut (100 nm or less) is not well understood. The chip formation physics, cutting forces generation, resulting temperatures and the size effects significantly affect the efficiency of the process and ...
Cheng, K, Guo, XJ, Holt, R, Luo, X
core   +2 more sources

Estimativa por DSC das entalpias de sublimação da etilenouréia e da propilenouréia: algumas correlações empíricas envolvendo amidas e tioamidas Estimative by DSC data of the sublimation enthalpies for ethyleneurea and propyleneurea: some empirical correlations with amides and tioamides

Química Nova, 1999
By using DSC data, the enthaplies of sublimation for ethyleneurea and propyleneurea, are calculated as 84 and 89 kJ mol-1 respectively. Using the vaporization enthalpy values for dimethylethyleneurea and dimethylprophyleneurea, as obtained from ...
Robson Fernandes de Farias
doaj   +1 more source

Molecular Structure, Thermodynamic and Spectral Characteristics of Metal-Free and Nickel Complex of Tetrakis(1,2,5-thiadiazolo)porphyrazine

Molecules, 2021
The Knudsen effusion method with mass spectrometric control of the vapor composition was used to study the possibility of a congruent transition to the gas phase and to estimate the enthalpy of sublimation of metal-free tetrakis(1,2,5-thiadiazolo ...
Yuriy A. Zhabanov, Alexey V. Eroshin, Igor V. Ryzhov, Ilya A. Kuzmin, Daniil N. Finogenov, Pavel A. Stuzhin   +5 more
doaj   +1 more source

On the computation of moist-air specific thermal enthalpy [PDF]

, 2014
The specific thermal enthalpy of a moist-air parcel is defined analytically following a method in which specific moist entropy is derived from the Third Law of thermodynamics.
Ambaum, Arakawa, Bannon, Bechtold, Betts, Betts, Betts, Bohren, Bougeault, Bretherton, Bretherton, Businger, Catry, Chase, Cuijpers, De Groot, Derbyshire, Dufour, Emanuel, Emanuel, Fagerstroem, Feistel, Fuehrer, Gerard, Glansdorff, Hauf, Iribarne, Jacobsen, Khairoutdinov, Lipiński, Madden, Manzhelii, Marquet, Marquet, Marquet, Marquet, Nagle, Normand, Pauling, Pauluis, Pauluis, Peterson, Richardson, Saunders, Siebesma, Tripoli, Wisniak, WMO, Zdunkowski   +48 more
core   +3 more sources

Calculation of Five Thermodynamic Molecular Descriptors by Means of a General Computer Algorithm Based on the Group-Additivity Method: Standard Enthalpies of Vaporization, Sublimation and Solvation, and Entropy of Fusion of Ordinary Organic Molecules and Total Phase-Change Entropy of Liquid Crystals

Molecules, 2017
The calculation of the standard enthalpies of vaporization, sublimation and solvation of organic molecules is presented using a common computer algorithm on the basis of a group-additivity method.
Rudolf Naef, William E. Acree
doaj   +1 more source

Piezoelectric crystal microbalance measurements of enthalpy of sublimation of C₂–C₉ dicarboxylic acids [PDF]

Atmospheric Measurement Techniques, 2016
We present here a novel experimental set-up that is able to measure the enthalpy of sublimation of a given compound by means of piezoelectric crystal microbalances (PCMs).
F. Dirri, E. Palomba, A. Longobardo, E. Zampetti   +3 more
doaj   +1 more source

Isavuconazole: Thermodynamic Evaluation of Processes Sublimation, Dissolution and Partition in Pharmaceutically Relevant Media

Molecules, 2021
A temperature dependence of saturated vapor pressure of isavuconazole (IVZ), an antimycotic drug, was found by using the method of inert gas-carrier transfer and the thermodynamic functions of sublimation were calculated at a temperature of 298.15 K. The
Marina Ol’khovich, Angelica Sharapova, Svetlana Blokhina, German Perlovich   +3 more
doaj   +1 more source