Hustoty NaOH(aq) při teplotách od 323 K do 573 K.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00019398" target="_blank" >RIV/60461373:22340/07:00019398 - 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

Densities of NaOH(aq) at temperatures from 323 K to 573 K.

Popis výsledku v původním jazyce

Densities of sodium hydroxide solutions at concentrations 0.1 m/mol kg 8 have been measured by vibrating-tube densimetry over the temperature range 323 T/K 573 at a pressure of 10 MPa. The purpose-built densimeter, which is capable of measuring densitiesof corrosive fluids at temperatures up to 573 K and pressures up to 30 MPa, has a platinum-rhodium vibrating tube with inlet/outlet tubes of platinum and an optical detection system. Calibrations were carried out with water and aqueous solutions of sodium chloride at temperatures up to 523 K. At higher temperatures, nitrogen was substituted as the auxiliary density reference because of uncertainties in the NaCl(aq) densities. The apparent molar volumes of NaOH(aq) calculated from the measured densitieswere fitted with an extended Redlich-Meyer equation. The present results are in good agreement with literature data but are more precise. The current global accuracy in the densities of NaOH(aq) appears to be about 0.1 %, being better at

Název v anglickém jazyce

Densities of NaOH(aq) at temperatures from 323 K to 573 K.

Popis výsledku anglicky

Densities of sodium hydroxide solutions at concentrations 0.1 m/mol kg 8 have been measured by vibrating-tube densimetry over the temperature range 323 T/K 573 at a pressure of 10 MPa. The purpose-built densimeter, which is capable of measuring densitiesof corrosive fluids at temperatures up to 573 K and pressures up to 30 MPa, has a platinum-rhodium vibrating tube with inlet/outlet tubes of platinum and an optical detection system. Calibrations were carried out with water and aqueous solutions of sodium chloride at temperatures up to 523 K. At higher temperatures, nitrogen was substituted as the auxiliary density reference because of uncertainties in the NaCl(aq) densities. The apparent molar volumes of NaOH(aq) calculated from the measured densitieswere fitted with an extended Redlich-Meyer equation. The present results are in good agreement with literature data but are more precise. The current global accuracy in the densities of NaOH(aq) appears to be about 0.1 %, being better at

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

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2007

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

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Svazek periodika

52

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

2237-2244

Kód UT WoS článku

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EID výsledku v databázi Scopus

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