Naftalen jako referenční látka pro měření tlaku nasycených par

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014831" target="_blank" >RIV/60461373:22340/05:00014831 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Naphthalene as a reference material for vapour pressure measurement

Popis výsledku v původním jazyce

The aim of the present work was to develop recommended sublimation vapour pressure data of naphthalene, consistent with calorimetric enthalpies of sublimation and also with properties at the triple point (vapour pressure, enthalpy of vaporization and enthalpy of fusion, where accurate data are available). Vapour pressure in the solid phase was measured by a static method in the temperature range from to 273 to 313 K, covering pressure range from 0.8 Pa to 45 Pa. Measurements at lower temperatures (downto 248 K) were performed in order to explore the capability of our apparatus; these values can be, however, subject to systematic errors and were not included in the correlation. Data were treated simultaneously with selected literature enthalpies of sublimation and differences between heat capacities of ideal gas and that of the solid. Resulting parameters of the Cox equation were constrained to agree with the recommended vapour pressure and enthalpy of vaporization at the triple point.

Název v anglickém jazyce

Naphthalene as a reference material for vapour pressure measurement

Popis výsledku anglicky

The aim of the present work was to develop recommended sublimation vapour pressure data of naphthalene, consistent with calorimetric enthalpies of sublimation and also with properties at the triple point (vapour pressure, enthalpy of vaporization and enthalpy of fusion, where accurate data are available). Vapour pressure in the solid phase was measured by a static method in the temperature range from to 273 to 313 K, covering pressure range from 0.8 Pa to 45 Pa. Measurements at lower temperatures (downto 248 K) were performed in order to explore the capability of our apparatus; these values can be, however, subject to systematic errors and were not included in the correlation. Data were treated simultaneously with selected literature enthalpies of sublimation and differences between heat capacities of ideal gas and that of the solid. Resulting parameters of the Cox equation were constrained to agree with the recommended vapour pressure and enthalpy of vaporization at the triple point.

Druh

O - Ostatní výsledky

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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