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- W2078604823 abstract "Mittels der von uns modifizierten Methoden zur Bestimmung der Komplexzusammensetzung (Methode der molaren Verhaltnisse sowie JOB-Methode der kontinuierlichen Variationen) wurde fur das Heteropolywolframat-Anion das verhaltnis 1 Al : 12 W bestimmt.Durch UV-absorptionsspektroskopische Untersuchungen wurden die optimalen Bedingungen fur die Komplexbildung zwischen Al3+- und WO42− -Ionen ermittelt: 1,33 ≤ Sauregrad Z ≤ 1,5; Reaktionstemperatur 105°C; Reaktionsdauer 2–6 Stunden (c = 7,15 ·10−2 bis 6 · 10−3 mol · l−1).Die pH-metrische Untersuchung ergab fur die vollstandige Komplexbildung zwischen Al3+- und WO42−-Ionen den Sauregrad Z = 16 H3O+/12 WO42− = 1,33.Investigations in the System Al3+WO42−H2OH3O+The composition of the tungstoaluminate anion [AlW12O40]5− was determined by means of the molar ratio and JOB's method of continuous variations modified by us.The optimum conditions for the complex formation in the system Al3+WO42−H2OH3O+ were determined: 1.33 ≤ acid degree Z ≤ 2.5; 105°C; 2–6h (c = 7.15 · 10−2–6 · 10−3 moles · l−1).The complex formation in dependence on the acid degree Z is complete at Z = 16 H3O+/12 WO42− = 1.33." @default.
- W2078604823 created "2016-06-24" @default.
- W2078604823 creator A5030563501 @default.
- W2078604823 creator A5087350729 @default.
- W2078604823 date "1978-10-01" @default.
- W2078604823 modified "2023-09-27" @default.
- W2078604823 title "Untersuchungen im System Al3+?WO42??H2O?H3O+" @default.
- W2078604823 cites W1890979901 @default.
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- W2078604823 doi "https://doi.org/10.1002/zaac.19784450125" @default.
- W2078604823 hasPublicationYear "1978" @default.
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