Thermal and Volumetric Properties of Some C5 and C6 Alkanones at Infinite Dilution in Water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43913449" target="_blank" >RIV/60461373:22340/17:43913449 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.acs.org/doi/pdf/10.1021/acs.jced.7b00114" target="_blank" >http://pubs.acs.org/doi/pdf/10.1021/acs.jced.7b00114</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jced.7b00035" target="_blank" >10.1021/acs.jced.7b00035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal and Volumetric Properties of Some C5 and C6 Alkanones at Infinite Dilution in Water

Popis výsledku v původním jazyce

Precise measurements of excess enthalpies and densities of highly dilute aqueous solutions of five C5-C6 alkanones (namely 2-pentanone, 3-pentanone, 3-methyl-2-butanone, 2-hexanone, and 4-methyl-2-pentanone) were carried out using tandem flow mixing calorimetry and vibrating-tube densimetry. The experimental data obtained in the temperature range from (288.15 to 318.15) K were utilized for the evaluation of limiting partial molar excess enthalpies, partial molar volumes, and partial molar excess volumes of the alkanones in water. Within the temperature range studied, these infinite dilution properties were found to exhibit linear trends. As inferred from respective linear fits, partial molar excess heat capacities, partial molar expansions, and excess partial molar expansions were obtained with a good accuracy. Moreover, hydration enthalpies and heat capacities of the alkanones studied were evaluated, too. The thermodynamic behavior of the alkanone solutes was discussed in terms of molecular interactions and shown to be closely correlated with that for equistructured alkanol solutes.

Název v anglickém jazyce

Thermal and Volumetric Properties of Some C5 and C6 Alkanones at Infinite Dilution in Water

Popis výsledku anglicky

Precise measurements of excess enthalpies and densities of highly dilute aqueous solutions of five C5-C6 alkanones (namely 2-pentanone, 3-pentanone, 3-methyl-2-butanone, 2-hexanone, and 4-methyl-2-pentanone) were carried out using tandem flow mixing calorimetry and vibrating-tube densimetry. The experimental data obtained in the temperature range from (288.15 to 318.15) K were utilized for the evaluation of limiting partial molar excess enthalpies, partial molar volumes, and partial molar excess volumes of the alkanones in water. Within the temperature range studied, these infinite dilution properties were found to exhibit linear trends. As inferred from respective linear fits, partial molar excess heat capacities, partial molar expansions, and excess partial molar expansions were obtained with a good accuracy. Moreover, hydration enthalpies and heat capacities of the alkanones studied were evaluated, too. The thermodynamic behavior of the alkanone solutes was discussed in terms of molecular interactions and shown to be closely correlated with that for equistructured alkanol solutes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Engineering Data

ISSN

0021-9568

e-ISSN

—

Svazek periodika

62

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1659-1666

Kód UT WoS článku

000401403000012

EID výsledku v databázi Scopus

2-s2.0-85020408386