Excess Molar Volumes and Excess Molar Enthalpies in Binary Systems N-alkyl-triethylammonium bis(trifluoromethylsulfonyl)imide + Methanol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F14%3A00422551" target="_blank" >RIV/67985858:_____/14:00422551 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.fluid.2013.11.025" target="_blank" >http://dx.doi.org/10.1016/j.fluid.2013.11.025</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fluid.2013.11.025" target="_blank" >10.1016/j.fluid.2013.11.025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Excess Molar Volumes and Excess Molar Enthalpies in Binary Systems N-alkyl-triethylammonium bis(trifluoromethylsulfonyl)imide + Methanol

Popis výsledku v původním jazyce

In the present paper, a study on the influence of the alkyl chain length in N-alkyl-triethylammoniumbis(trifluoromethylsulfonyl)imide ionic liquids, [NR,222][Tf2N] (R = 6, 8 or 12), on the excess molar enthalpyat 303.15 K and excess molar volume within the temperature interval (283.15?338.15 K) of ionic liq-uid + methanol mixtures is carried out. Small excess molar volumes with highly asymmetric curves (i.e.S-shape) as a function of mole fraction composition were obtained, with negative values showing in themethanol-rich regions. The excess molar volumes increase with the increase of the alkyl-chain length ofthe ammonium cation of the ionic liquid and decrease with temperature. The excess enthalpies of selectedbinary mixtures are positive over the whole composition range and increase slightly with the length ofthe alkyl side-chain of the cation on the ionic liquid. Both excess properties were subsequently correlatedusing a Redlich?Kister-type equation, as well as by using the ERAS mode

Název v anglickém jazyce

Excess Molar Volumes and Excess Molar Enthalpies in Binary Systems N-alkyl-triethylammonium bis(trifluoromethylsulfonyl)imide + Methanol

Popis výsledku anglicky

In the present paper, a study on the influence of the alkyl chain length in N-alkyl-triethylammoniumbis(trifluoromethylsulfonyl)imide ionic liquids, [NR,222][Tf2N] (R = 6, 8 or 12), on the excess molar enthalpyat 303.15 K and excess molar volume within the temperature interval (283.15?338.15 K) of ionic liq-uid + methanol mixtures is carried out. Small excess molar volumes with highly asymmetric curves (i.e.S-shape) as a function of mole fraction composition were obtained, with negative values showing in themethanol-rich regions. The excess molar volumes increase with the increase of the alkyl-chain length ofthe ammonium cation of the ionic liquid and decrease with temperature. The excess enthalpies of selectedbinary mixtures are positive over the whole composition range and increase slightly with the length ofthe alkyl side-chain of the cation on the ionic liquid. Both excess properties were subsequently correlatedusing a Redlich?Kister-type equation, as well as by using the ERAS mode

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Fluid Phase Equilibria

ISSN

0378-3812

e-ISSN

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Svazek periodika

363

Číslo periodika v rámci svazku

FEB 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

156-166

Kód UT WoS článku

000331494600019

EID výsledku v databázi Scopus

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