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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 126 (1995), S. 535-541 
    ISSN: 1434-4475
    Keywords: Magnesium nickel selenate ; Activity coefficients ; Gibbs energy of mixing ; Isopiestic method ; Pitzer model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Aktivitätskoeffizienten der Salzkomponenten sowohl der gesättigten Lösungen als auch der Mischkristalle (Zusammensetzung: (MgxNi1−x)SeO4·6H2O) des Systems MgSeO4-NiSeO4-H2O wurden bei 25°C mit Hilfe der isopiestischen Methode bestimmt. Es konnte gezeigt werden, daß die gebildeten Mischkristalle nur leicht vom idealen Zustand abweichen und mit einem regulären Modell gut beschrieben werden können. Zur Berechnung der thermodynamischen Eigenschaften der Salzkomponenten des ternären Systems wurde dasPitzersche lonenwechselwirkungsmodell herangezogen. Die berechneten Werte stimmen mit den mittels der isopiestischen Methode gewonnenen experimentellen Ergebnissen gut überein.
    Notes: Summary Activity coefficients of the salt components in both the saturated solutions and the (MgxNi1−x)SeO4·6H2O mixed crystals of the MgSeO4-NiSeO4-H2O system at 25°C have been determined by the isopiestic method. It has been established that the formed mixed crystals deviate only slightly from ideality and can be adequately described by a regular model. ThePitzer ion-interaction model has been used to calculate the thermodynamic properties of the salt components in the ternary system. The calculated data are in good agreement with those obtained experimentally by the isopiestic method.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 65 (1998), S. 265-270 
    ISSN: 1588-2837
    Keywords: Alumina supported manganese oxide ; manganese formate ; FTIR spectroscopy ; NH3 and NO adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Adsorption and coadsorption of NH3 and NO on alumina-supported manganese oxide catalyst prepared from manganese formate precursor has been studied by means of FTIR spectroscopy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 68 (1999), S. 331-337 
    ISSN: 1588-2837
    Keywords: Copper-on-alumina catalysts ; copper formate ; FTIR spectroscopy ; NH3 and NO adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Adsorption and coadsorption of NH3 and NO on copper-on-alumina catalysts prepared from formate precursors by calcination at 670 and 870 K was studied by means of FTIR spectroscopy. It has been established that the sample prepared at lower temperature exhibits a higher activity with respect to NO reduction with ammonia.
    Type of Medium: Electronic Resource
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