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Liquid-Liquid Equilibrium and Excess Enthalpies in the Binary System 2-Methylpentane + N,N-Dimethylformamide

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F04%3A00010993" target="_blank" >RIV/60461373:22340/04:00010993 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985858:_____/04:00104868

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Liquid-Liquid Equilibrium and Excess Enthalpies in the Binary System 2-Methylpentane + N,N-Dimethylformamide

  • Original language description

    Liquid-liquid equilibrium and excess enthalpies were measured for the binary system 2-methylpentane + N,N-dimethylformamide. Equilibrium data were obtained at different temperatures by the direct analytical and volume methods; points of the binodal curvein the vicinity of the upper critical solution temperature of this system were acquired by means of the cloud-point method. Excess enthalpies were measured at 298.15 K and 313.15 K. Binary data were correlated by the modified Wilson equation. To estimate the critical composition and the upper critical solution temperature, the liquid phase behavior data were also described by the extended scaling-law. The liquid-liquid equilibrium and excess enthalpies in the binary system were predicted by the modified UNIFAC (Dortmund) model so that the prediction could be compared to the experimentally achieved data.

  • Czech name

    Rovnováha kapalina-kapalina a dodatkové entalpie v binárním systému 2-methylpentan + N,N-dimethylformamid

  • Czech description

    Rovnováha kapalina-kapalina a dodatková entalpie byla měřena v binárním systému 2-methylpentan + N,N-dimethylformamid. Rovnovážná data byla získána při několika teplotách přímou analytickou metodou a objemovou metodou. Zákalovou metodou byly určovány body binodální křivky v okolí kritického bodu. Dodatková entalpie byla měřena při teplotách 298,15 K a 313,15 K. Pro odhad kritického složení a horní rozpouštěcí teploty byla data rovnováhy kapalina-kapalina vyhlazena pomocí rozšířeného "scaling-law" zákona. Rovnováha kapalina-kapalina a dodatková entalpie byla také odhadnuta pomocí modelu UNIFAC a odhadovaná data byla konfrontována s daty experimentálními.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Chemical Engineering Data

  • ISSN

    0021-9568

  • e-ISSN

  • Volume of the periodical

    49

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

    1318-1322

  • UT code for WoS article

  • EID of the result in the Scopus database