Vapor Pressure of Selected Aliphatic Hexanols by Static and Indirect Chromatographic Methods
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F25%3A43932682" target="_blank" >RIV/60461373:22320/25:43932682 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60461373:22340/25:43932682
Výsledek na webu
<a href="https://www.mdpi.com/1420-3049/30/21/4287" target="_blank" >https://www.mdpi.com/1420-3049/30/21/4287</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/molecules30214287" target="_blank" >10.3390/molecules30214287</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Vapor Pressure of Selected Aliphatic Hexanols by Static and Indirect Chromatographic Methods
Popis výsledku v původním jazyce
Vapor pressures of eight aliphatic hexanols ((+/-)-3-hexanol, CAS RN: 623-37-0; 2-methyl-2-pentanol, CAS RN: 590-36-3; (+/-)-2-methyl-3-pentanol, CAS RN: 565-67-3; (+/-)-3-methyl-2-pentanol, CAS RN: 565-60-6; 3-methyl-3-pentanol, CAS RN: 77-74-7; 2,2-dimethyl-1-butanol, CAS RN: 1185-33-7; 2,3-dimethyl-2-butanol, CAS RN: 594-60-5; and (+/-)-3,3-dimethyl-2-butanol, CAS RN: 464-07-3) were measured by the static method in the temperature range of 233 to 308 K. These data were combined with selected literature vapor pressures and simultaneously correlated with heat capacities in the ideal gaseous state (determined in the framework of this work, since no literature data were available) and liquid heat capacities reported by us previously. The vapor pressures measured for test (px) and reference (pr) compounds were combined with corresponding gas-liquid chromatographic (GLC) adjusted retention times (t ') measured in the same temperature region to determine relative activity coefficients at infinite dilution (gamma rel infinity). The linearly extrapolated values of gamma rel infinity up to 363 K, together with known directly measured pr values at these temperatures, allow reasonably accurate px data to be obtained at extrapolated temperatures. Results were compared with fragmentary literature data. Enthalpies of vaporization derived from the vapor pressures obtained in this work represent a significant contribution to existing databases.
Název v anglickém jazyce
Vapor Pressure of Selected Aliphatic Hexanols by Static and Indirect Chromatographic Methods
Popis výsledku anglicky
Vapor pressures of eight aliphatic hexanols ((+/-)-3-hexanol, CAS RN: 623-37-0; 2-methyl-2-pentanol, CAS RN: 590-36-3; (+/-)-2-methyl-3-pentanol, CAS RN: 565-67-3; (+/-)-3-methyl-2-pentanol, CAS RN: 565-60-6; 3-methyl-3-pentanol, CAS RN: 77-74-7; 2,2-dimethyl-1-butanol, CAS RN: 1185-33-7; 2,3-dimethyl-2-butanol, CAS RN: 594-60-5; and (+/-)-3,3-dimethyl-2-butanol, CAS RN: 464-07-3) were measured by the static method in the temperature range of 233 to 308 K. These data were combined with selected literature vapor pressures and simultaneously correlated with heat capacities in the ideal gaseous state (determined in the framework of this work, since no literature data were available) and liquid heat capacities reported by us previously. The vapor pressures measured for test (px) and reference (pr) compounds were combined with corresponding gas-liquid chromatographic (GLC) adjusted retention times (t ') measured in the same temperature region to determine relative activity coefficients at infinite dilution (gamma rel infinity). The linearly extrapolated values of gamma rel infinity up to 363 K, together with known directly measured pr values at these temperatures, allow reasonably accurate px data to be obtained at extrapolated temperatures. Results were compared with fragmentary literature data. Enthalpies of vaporization derived from the vapor pressures obtained in this work represent a significant contribution to existing databases.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
MOLECULES
ISSN
1420-3049
e-ISSN
1420-3049
Svazek periodika
30
Číslo periodika v rámci svazku
21
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
24
Strana od-do
4287
Kód UT WoS článku
001612783000001
EID výsledku v databázi Scopus
2-s2.0-105021532445