Thermodynamic Properties of Three Pyridine Carboxylic Acid Methyl Ester Isomers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00020653" target="_blank" >RIV/60461373:22340/07:00020653 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Thermodynamic Properties of Three Pyridine Carboxylic Acid Methyl Ester Isomers

Original language description

The present work reports the values of the standard (p = 0.1 MPa) molar energies of combustion for the liquid isomers methyl picolinate and methyl isonicotinate and for the crystalline isomer methyl nicotinate measured by static bomb calorimetry. The molar enthalpies of vaporization of the three isomers at T = 298.15 K as well as the molar enthalpies of sublimation of two of them (methyl picolinate and methyl nicotinate) were derived from vapor pressure measurements at different temperatures using a static method. The molar enthalpies of vaporization at T = 298.15 K of methyl picolinate and methyl isonicotinate were also measured using Calvet microcalorimetry. The thermal behavior of the compounds was studied by differential scanning calorimetry, and the temperatures and the molar enthalpies of fusion were determined using this technique. The experimental results were used to derive the gaseous standard molar enthalpies of formation, at 298.15 K, of the three pyridinecarboxylic acid me

Czech name

Termodynamické vlastnosti tří izomerů methylesteru kyseliny pyridin karboxylové

Czech description

V rámci této práce byly získány standardní (p0 = 0.1 MPa) spalovací entalpie, molární výparné entalpie a sublimační entalpie tří izomerů methylesteru kyseliny pyridin karboxylové. Teploty a entalpie tání byly určeny diferenční skenovací kalorimetrií. Experimentální výsledky byly použity pro výpočet standardních slučovacích entalpií v plynném stavu při teplotě 298,15 K a k určení souřadnic trojných bodů.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BJ - Thermodynamics

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2007

Confidentiality

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

Name of the periodical

Journal of Chemical Engineering Data

ISSN

0021-9568

e-ISSN

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Volume of the periodical

52

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

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UT code for WoS article

000244734600044

EID of the result in the Scopus database

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