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  • 1970-1974  (1)
  • 1965-1969  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 100 (1969), S. 2019-2023 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract The present paper describes the polarographic behaviour of Mn(II) in various supporting electrolytes in aqueous and aqueous-alcoholic mixtures. The reduction has been found to be a quasi reversible one. The values of α,E 3 2/r , andk s have been calculated by the method developed byMatsuda andAyabe 4.
    Notes: Zusammenfassung Die vorliegende Arbeit behandelt das polarographische Verhalten von Mn(II) in wäßriger und alkoholisch-wäßriger Lösung in Gegenwart verschiedener Leitsalze. Die Reduktion erweist sich als quasireversibel. Die Werte für α,E 1 2/r undk s wurden nach der Methode vonMatsuda und Ayabe 4 berechnet.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung An der Quecksilber-Tropfenelektrode zeigt In3+ bei Gegenwart von Glykolsäure, Brenztraubensäure, Buttersäure oder Lävulinsäure das für „quasireversible” Elektrodenprozesse typische Verhalten.
    Notes: Abstract In the presence of glycolic, pyruvic, butyric or laevulinic acid In3+ at the dropping-mercury electrode behaves in a manner typical of „quasi-reversible” electrode processes.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 99 (1968), S. 2526-2533 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract The said complexes have been studied by polarography. Zn is found to be reversibly reduced while Ni gives an irreversible wave. Stability constants of the Zn complex are calculated byDeFord andHume method. Effect of pH on Zn and Ni wave are reported. Estimations of Zn or Ni are carried out separately or in presence of interfering cations.
    Notes: Zusammenfassung Die Nickel- und Zinkkomplexe der Adipinsäure werden polarographisch untersucht. Es zeigt sich, daß Zink reversibel reduziert wird, wogegen Nickel eine irreversible Stufe ergibt. Die Stabilitätskonstanten des Zink—Adipinsäurekomplexes werden nachDeFord undHume berechnet. Der Einfluß des pH-Wertes auf die Zink- und die Nickelstufe wird untersucht. Zink und Nickel werden in Gegenwart vieler störender Kationen halbquantitativ bestimmt.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 311 (1969), S. 635-642 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polarographic investigations on complexes of cadmium and lead with adipic acid have been carried out. The present study includes the effects of various parameters such as mercury pressure, temperature, concentration of metal ion, concentration of ligand, pH, surface active substances and viscosity on the waves. The plot of  -  E1/2 vs SCE and  -  log Cx is a curve (Fig. 2) showing the formation of more than one complex. The value of F3(X) is found to be constant (Table 1) which proves that three complexes are formed. Their overall stability constants have been calculated by using DEFORD and HUME'S method [2] and the values habe been found to be β1 = 16.5, β2 = 48.5, β3 = 116 ± 2.Along with this, effect of pH on pK1 (4.43) and pK2 (5.28) of adipic acid has also been investigated. The present work is also an attempt to describe the mechanism of the electrode process involved therein.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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