LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 7 of total 7

Search options

  1. Article: Surface Tensions of Alkyl Lactates with

    Almodovar, Carmen / Artigas, Héctor / Wacharine, Saoussen / Antar, Kaïs / Lafuente, Carlos

    Journal of chemical and engineering data

    2022  Volume 68, Issue 1, Page(s) 100–107

    Abstract: The surface behavior of 18 binary mixtures ... ...

    Abstract The surface behavior of 18 binary mixtures at
    Language English
    Publishing date 2022-12-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491128-0
    ISSN 1520-5134 ; 0021-9568
    ISSN (online) 1520-5134
    ISSN 0021-9568
    DOI 10.1021/acs.jced.2c00629
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article: Thermophysical Study of Pyridinium-Based Ionic Liquids Sharing Ions.

    Reinado, Christian / Pelegrina, Adrián / Sánchez-Rubio, Miguel / Artigas, Héctor / Lafuente, Carlos

    Journal of chemical and engineering data

    2022  Volume 67, Issue 3, Page(s) 636–643

    Abstract: The thermophysical properties of three pyridinium-based ionic liquids sharing ions were measured at several temperatures (278.15-338.15) K and at atmospheric pressure (0.1 MPa). Three ionic liquids were studied: 1-butylpyridinium bis(trifluoromethyl- ... ...

    Abstract The thermophysical properties of three pyridinium-based ionic liquids sharing ions were measured at several temperatures (278.15-338.15) K and at atmospheric pressure (0.1 MPa). Three ionic liquids were studied: 1-butylpyridinium bis(trifluoromethyl-sulfonyl)imide, 1-hexylpyridinium bis(trifluoromethylsulfonyl)imide, and 1-hexylpyridinium tetrafluoroborate. The following thermophysical properties were measured: density, speed of sound, refractive index, surface tension, isobaric molar heat capacity, kinematic viscosity, and electrical conductivity. The thermophysical properties at atmospheric pressure were correlated with temperature, noting that the starting temperature for the speed of sound measurements depended on the ionic liquid. From these experimental results, some derived properties (isentropic compressibility, molar refraction, and dynamic viscosity) are calculated. These results together with those published previously for 1-butylpyridinium tetrafluoroborate are discussed.
    Language English
    Publishing date 2022-02-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491128-0
    ISSN 1520-5134 ; 0021-9568
    ISSN (online) 1520-5134
    ISSN 0021-9568
    DOI 10.1021/acs.jced.1c00925
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article: Phase equilibrium of binary mixtures of cyclic ethers + chlorobutane isomers: experimental measurements and SAFT-VR modeling.

    Giner, Beatriz / Gascón, Ignacio / Artigas, Héctor / Lafuente, Carlos / Galindo, Amparo

    The journal of physical chemistry. B

    2007  Volume 111, Issue 32, Page(s) 9588–9597

    Abstract: The phase equilibria (experimental and modeled) of eight binary mixtures each formed by a cyclic ether (1,3-dioxolane or 1,4-dioxane) and a chlorobutane isomer (1-chlorobutane, 2-chlorobutane, 1-chloro-2-methylpropane, or 2-chloro-2-methylpropane) are ... ...

    Abstract The phase equilibria (experimental and modeled) of eight binary mixtures each formed by a cyclic ether (1,3-dioxolane or 1,4-dioxane) and a chlorobutane isomer (1-chlorobutane, 2-chlorobutane, 1-chloro-2-methylpropane, or 2-chloro-2-methylpropane) are presented. New experimental vapor-liquid equilibrium data at isothermal conditions (298.15, 313.15, and 328.15 K) has been obtained, and the statistical associating fluid theory for potentials of variable range (SAFT-VR) is used to model the mixtures. The results are discussed in terms of both the molecular characteristics of the pure compounds and the unlike intermolecular interactions present in the mixtures. The SAFT-VR approach is first used together with standard combining rules without adjustable parameters in order to predict the phase behavior at isothermal conditions. Good agreement between experiment and the prediction is found with such a model. Mean absolute deviations for pressures lie between 1 and 3 kPa, while for vapor phase compositions are less than 0.03 in mole fraction. However, a better agreement, can be obtained by introducing one adjustable parameter kij, which modifies the strength of the dispersion interaction between unlike components in the mixtures. This parameter is adjusted so as to model the phase equilibrium of the whole family of mixtures studied here at isothermal and isobaric conditions. We find that a unique unlike parameter kij is valid for all the studied mixtures and it is not temperature or pressure dependent. This unique transferable parameter together with the SAFT-VR approach provide a description of the vapor-liquid equilibrium of the mixtures that is in excellent agreement with the experimental data. In this case, the absolute deviations are of the order of 0.001 in mole fraction for vapor-phase compositions and less than 1 kPa for pressure.
    Language English
    Publishing date 2007-08-16
    Publishing country United States
    Document type Journal Article
    ISSN 1520-6106
    ISSN 1520-6106
    DOI 10.1021/jp073163j
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article: Thermophysic comparative study of two isomeric pyridinium-based ionic liquids.

    Bandrés, Isabel / Giner, Beatriz / Artigas, Héctor / Royo, Félix M / Lafuente, Carlos

    The journal of physical chemistry. B

    2008  Volume 112, Issue 10, Page(s) 3077–3084

    Abstract: A comprehensive thermophysical study of isomeric room-temperature ionic liquids n-butyl-3-methyl-pyridinium tetrafluoroborate and n-butyl-4-methyl-pyridinium tetrafluoroborate has been performed. This paper reports various experimental data including ... ...

    Abstract A comprehensive thermophysical study of isomeric room-temperature ionic liquids n-butyl-3-methyl-pyridinium tetrafluoroborate and n-butyl-4-methyl-pyridinium tetrafluoroborate has been performed. This paper reports various experimental data including density, speed of sound, refractive index, surface tension, isobaric molar heat capacity, and kinematic viscosity. From the experimental results, coefficients of thermal expansion, dynamic viscosities and molar refractions of the studied ionic liquids have been determined. Results have been analyzed paying special attention to the different features of the isomers and their structural differences. Several theories and empirical relations have been applied in order to predict physical properties of ionic liquids. A good agreement between experimental and calculated data has been found. Furthermore, a study about the versatility and application of the different relationships has been carried out finding that in general density and coefficients of thermal expansion can be estimated with relatively good accuracy.
    Language English
    Publishing date 2008-03-13
    Publishing country United States
    Document type Journal Article
    ISSN 1520-6106
    ISSN 1520-6106
    DOI 10.1021/jp077259p
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article: Study of weak molecular interactions through thermodynamic mixing properties.

    Giner, Beatriz / Martín, Santiago / Artigas, Héctor / López, María C / Lafuente, Carlos

    The journal of physical chemistry. B

    2006  Volume 110, Issue 35, Page(s) 17683–17690

    Abstract: The electron donor-acceptor abilities of some cyclic ethers (tetrahydropyran or tetrahydrofuran), benzene, and halobenzenes (fluorobenzene or chlorobenzene) and the molecular interactions between these compounds have been investigated through a wide set ... ...

    Abstract The electron donor-acceptor abilities of some cyclic ethers (tetrahydropyran or tetrahydrofuran), benzene, and halobenzenes (fluorobenzene or chlorobenzene) and the molecular interactions between these compounds have been investigated through a wide set of thermodynamic mixing properties of their mixtures. The mixing properties have been derived from experimental measurements of density, speed of sound, refractive index, surface tension, heat of mixing, and vapor-liquid equilibrium at the temperature of 298.15 K.
    Language English
    Publishing date 2006-09-07
    Publishing country United States
    Document type Journal Article
    ISSN 1520-6106
    ISSN 1520-6106
    DOI 10.1021/jp062583q
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article: Surface behavior of the 1-bromobutane with isomeric butanol mixtures.

    Giner, Beatriz / Gascón, Ignacio / Artigas, Héctor / Royo, Félix M / Lafuente, Carlos

    The journal of physical chemistry. B

    2005  Volume 109, Issue 48, Page(s) 23096–23102

    Abstract: Surface tensions of the 1-bromobutane with isomeric butanol mixtures were measured in the temperature range 283.15 K (or 298.15 K for 2-methyl-2-propanol) to 313.15 K with a drop volume tensiometer, and the corresponding surface tension deviations were ... ...

    Abstract Surface tensions of the 1-bromobutane with isomeric butanol mixtures were measured in the temperature range 283.15 K (or 298.15 K for 2-methyl-2-propanol) to 313.15 K with a drop volume tensiometer, and the corresponding surface tension deviations were calculated. Using this information together with bulk thermodynamic properties a thermodynamic study on surface formation was presented. This study includes the calculation of excess surface compositions and excess properties of surface formation.
    Language English
    Publishing date 2005-12-08
    Publishing country United States
    Document type Journal Article
    ISSN 1520-6106
    ISSN 1520-6106
    DOI 10.1021/jp053381h
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article: Thermophysical study of the n-hexane or n-heptane with 1-chloropropane systems

    Alonso, Enrique / Guerrero, Hernando / Montaño, Diego / Lafuente, Carlos / Artigas, Héctor

    Thermochimica acta

    Volume v. 525,, Issue no. 1

    Abstract: Densities, speeds of sound and refractive indices at atmospheric pressure and at a temperature range of 283.15–313.15K, and isothermal vapour liquid equilibrium at 298.15K for the binary mixtures of n-hexane or n-heptane with 1-chloropropane have been ... ...

    Abstract Densities, speeds of sound and refractive indices at atmospheric pressure and at a temperature range of 283.15–313.15K, and isothermal vapour liquid equilibrium at 298.15K for the binary mixtures of n-hexane or n-heptane with 1-chloropropane have been determined. Excess volumes, excess isentropic compressibilities, refractive index deviations and excess Gibbs functions were calculated from the experimental data. All these properties provide an insight into the nature of interactions operating on the present systems.
    Keywords vapors ; hexane ; atmospheric pressure ; refractive index ; temperature
    Language English
    Document type Article
    ISSN 0040-6031
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top