Partial molar volumes of organic solutes in water. XX. Glycine(aq) and L-alanine(aq) at temperatures (298 to 443) K and at pressures up to 30 MPa

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F10%3A%230000188" target="_blank" >RIV/46747885:24510/10:#0000188 - 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

Partial molar volumes of organic solutes in water. XX. Glycine(aq) and L-alanine(aq) at temperatures (298 to 443) K and at pressures up to 30 MPa

Popis výsledku v původním jazyce

Density data for dilute aqueous solutions of two amino acids (glycine, L-alanine) obtained using a flow vibrating-tube densimeter are presented together with partial molar volumes at infinite dilution (standard molar volumes, V(m,2)degrees) calculated from the measured data. The experiments were performed at temperatures from (298 up to 443) K at pressures close to the saturation line of water, at pressures in the range from (15 to 17) MPa, and at 30 MPa. Values of an analogue of isothermal compressibility, kappa(T,2)degrees = -(1/V(m,2)degrees)(partial derivative V(m,2)degrees/partial derivative p)(T), are also evaluated. Maxima on the curves V(m,2)degrees(T) and kappa(T,2)degrees T) are observed and discussed. The new data along with literature values of standard molar volumes and heat capacities are used for generating the recommended parameterization of an equation of state for standard molar thermodynamic properties of the aqueous amino acids.

Název v anglickém jazyce

Partial molar volumes of organic solutes in water. XX. Glycine(aq) and L-alanine(aq) at temperatures (298 to 443) K and at pressures up to 30 MPa

Popis výsledku anglicky

Density data for dilute aqueous solutions of two amino acids (glycine, L-alanine) obtained using a flow vibrating-tube densimeter are presented together with partial molar volumes at infinite dilution (standard molar volumes, V(m,2)degrees) calculated from the measured data. The experiments were performed at temperatures from (298 up to 443) K at pressures close to the saturation line of water, at pressures in the range from (15 to 17) MPa, and at 30 MPa. Values of an analogue of isothermal compressibility, kappa(T,2)degrees = -(1/V(m,2)degrees)(partial derivative V(m,2)degrees/partial derivative p)(T), are also evaluated. Maxima on the curves V(m,2)degrees(T) and kappa(T,2)degrees T) are observed and discussed. The new data along with literature values of standard molar volumes and heat capacities are used for generating the recommended parameterization of an equation of state for standard molar thermodynamic properties of the aqueous amino acids.

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

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Thermodynamics

ISSN

0021-9614

e-ISSN

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Svazek periodika

42

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

272898600007

EID výsledku v databázi Scopus

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